| Suitcase Lesson Frances Senska,
Artist
Until the last 100 years, women were not generally recognized in art
history references. Before this, women were recognized for art forms such
as china painting, quilting, and needlepoint. However, in this century
women artists have taken their place of honor among their male counterparts.
In 1981, the Montana Arts Council, the state agency responsible for fostering
the arts in Montana, began a Governor's Arts Awards Program to recognize
both outstanding artists and outstanding service to the arts. Frances Senska
won the Governor's Arts Award for Visual Arts in 1988. Frances Senska represents
a woman who has had a long career in the arts, working in various media
and specializing in clay. She taught art for over 25 years at MSU Bozeman.
The Montana Chapter of the National Museum of Women in the Arts is pleased
to sponsor this Suitcase Lesson. Part of the purpose of this organization
is "to encourage the development and recognition of Montana women in the
arts."
This Suitcase Lesson was created by students in the Art Methods class
at University of Montana -- Western of the University of Montana. We hope that you
enjoy using the lesson as an arts resource for your classroom.
This art teaching resource is for the classroom teacher to have a visual
art resource unit. The purpose for creating the unit is threefold:
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To give students familiarity with a Montana artist
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To inspire students to make art and become artists
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To teach art methods
This package contains the following materials:
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Black a White photograph of Francis Senska (on left) with artist Jessie
Wilbur (on right) Governor's Award Biography
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Three articles about Senska
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Four full page photos of ceramic pieces as educational tools
Instructions about clay modeling for the following:
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making clay bells and beads coil pot
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folded clay animals
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pocket pot
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slab pot
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wind chimes
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operating a kiln
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making clay
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clay tiles
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Pottery Vocabulary
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"Ceramics, A Guide for Clay"
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"Pottery: History, Equipment, and Materials"
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Porcelain Powder Formula
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Stoneware Powder Formula Ceramics Tool Kit
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Video of University of Montana -- Western - UM students throwing clay pots
Lesson written by Ryan Kakalecik, 351 Art Methods student, Fall Semester
1996. This lesson (including video) was created to give visual instruction
on throwing.
Bibliography
USE OF THIS SUITCASE LESSON
Learning to throw a pot on the potter's wheel is one option for middle
school and high school level students.
I f potter's wheels are not available, this package offers a variety
of succinct descriptions for hand building containers and objects.
A contemporary art history lesson can be put together from the articles
about Senska, i f the user of this package wishes to make a presentation
about Senska as a practicing artist.
Learning about clay as an art medium offers science related information.
This package is quite complete with historical material about clay use
and other clay trivia.
Clay is a wonderfully "plastic" material, and one which can be formed
In an Infinite amount of ways. Clay comes from the earth, Is a natural
material (with some minerals added for ease of working) and It offers a
meditative experience In working it.
Of course, this lesson addresses uses for ceramic clays which require
kiln firing. The Archie Bray in Helena is an excellent outlet for
ceramic clays. Their phone number is: 406 442-2521, and they sell 12 types
of ceramic clay.
Some other types of clay which do not require firing -
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Sculpey - which can be baked in a regular oven (there are other brands
similar to Sculpey)
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Plasticana clays - the traditional non hardening elementary school type
of clays which now come in various colors.
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Callunlax - a paper mache which forms small shapes well.
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Self hardening clay - Can be painted when hard. Various brand names.
Sources - Visit a craft supply store or place orders through school
supply catalogs and art supply catalogs.
Good luck with the lesson and HAVE FUN!
Art Methods Students: Ryan Kakalecik
Pam Dolan Deanna Burch Erica Holschbach
Sally Colburn EdD Assistant Professor of Art/Education
ARCHIE BRAY FOUNDATION
2915 Country Club Avenue - Helena, Montana 59601 443-3502
June 1988
NEWS FROM THE CLAY BUSINESS
In March we completed the first successful production runs of pugged
clay. The machinery is operating well, but we are still working out a few
bugs. We will soon have new boxes, printed with the original Akio design
"Brickyard Lady" logo, for packaging pugged clay. New clay bodies are being
developed and old ones revamped. 'They will be available in, stock by mid-May.
Currently, ABF stoneware and ABF oxidation pugged clay are in stock, two
25 lb. pugs per- box. Special mixes are available in quantities in excess
of 3.000 pounds. As a result of our volume purchases of books for
the inventory here, we have been able take advantage of a good discount
to order ceramic reference books for libraries in nine Montana cities.
The books will also be available through the Montana Inter-Library Loan
Service. We envision doing this on an annual basis, with the goal of providing
six basic ceramic books to the following libraries: Missoula Public Library
Bozeman Public Library Miles City Public Library Butte-Silver Bow Public
Library Glasgow Public Library Parry Billings Library Lewis & Clark
Library, Helena Great Falls Public Library Flathead County Library Bitterroot
Public Library, Hamilton - Chip Clawson
FRANCES SENSKA AND JESSIE WILBER RECEIVE GOVERNOR'S
ARTS AWARD
On the evening of January 29, 1988 Bozeman's Main Street traffic was
halted at the corner of Tracy Avenue for at least 45 minutes by "men in
blue." No, it was not a road block or a shakedown, just an exuberant parade
throng honoring two great ladies, Frances Senska and Jessie Wilber.
The Ellen Theater had been packed to the rafters with their Montana
art world friends. University colleagues, students and former students,
and friends from the Gallatin Valley. They had gathered for this occasion
to honor Senska and Wilber. with Governor Ted Schwinden bestowing upon
these two the prestigious 1988 Governor's Awards For Distinguished Achievement
In the Arts, under the aegis of the Montana Arts Council. Then that great
audience. many wearing masks, others carrying lighted lanterns, trooped
over to the Elks Club for more joyous celebration. What a night it was!
The teaching years of Senska and Wilber together number more than sixty
at MSU and have touched the lives of hundreds of artists. Today, though
retired, they are still active in the arts community and have little time
for reminiscence about what happened 'back when.' But Archie Bray's
dream for the Foundation early involved them ...Jessie made special tile
for the front wall of the pottery ... and they continue to give their blessings
in many positive ways. They are very much a part of the Bray Foundation
family. -Virginia Walton
Frances Senska
1988 Governor's Award in the Visual Arts
Frances Senska and Jessie Wilber--artists, teachers and active members
in Bozeman cultural life--were jointly honored for their distinguished
achievements at a ceremony in the Ellen Theater in January, 1988.
Frances--who works in a variety of media but is known primarily as a
ceramic artist--was born in 1914 in Batanga, Cameron, where her father
was a doctor and her mother a teacher with the Presbyterian Board of Foreign
Missions. Frances earned a BA in Art from the University of Iowa in 1935
and an MA in 1939. She later studied at Chouinard in Los Angeles and at
Chicago's School of Design.
Her teaching career began at Grinnell college in Iowa, was interrupted
by the U.S. Navy (1942-46), and resumed at Montana State University in
1946, where she was a member of faculty until 1973. During summers, she
also taught summer school at Portland Art Museum and the University of
Utah, as well as conducting numerous workshops in Colorado, Alaska and
Washington.
Frances' ceramic work has been recognized, collected and included in
major shows, such as "Masters of Ceramic Arts," and has been a primary
influence on many of the nation's outstanding clay artists. Her work has
been exhibited not only throughout Montana, but the United States. One
nominator stated: "She takes her form and insight from the African environment
of her childhood, her materials from Montana soils, from her sense of wit
and sharp intelligence. To touch a simple dish of Senska's is to encounter
the perfection of craft, the pleasure of touch and sight....
Frances received an honorary doctorate from MSU in 1982. Students in
the Film and TV department there made a film about her work in 1978, which
was shown in 1979 at the National Council on Education of the Ceramic Arts
meeting where she was made an honorary member. She was a trustee of the
American Craft Council 1972-75 and was elected to the College of Fellows
of that organization in 1988. She was a founding member of the Montana
Institute of the Arts in 1948, a director in 1961-62, and made a Fellow
in 1964.
The Lives and Work of Frances Senska and Jessie Wilber
Frances Senska and Jessie Wilber, artists, teachers, and long-time members
of the Bozeman community, live in the home they built in 1953. Entering
the house, one has an immediate feeling of comfort as well as an awareness
of traces of the many other people who have been welcomed into this place.
Jessie Wilber arrived in Bozeman 1941 Raised in the midwest, she had
a happy childhood. When she was 9 her family moved to Boulder Colorado.
This was the time where she experienced a deep emotional feeling toward
the environment that would be reflected in her paintings, prints, drawings
and collages for many years to come.
Jesse received her masters degree in art in Creeley, from Colorado.
After graduating she taught for four years before an opening in the art
department at MSU brought her to Montana.
Frances Senska was born in Batanga, Cameroon, Africa, where she lived
with her family. Her father was a doctor and her mother, a teacher with
the Presbyterian Board of Foreign Missions.
At the University Iowa, Frances completed her BA in Art in 1935, and
her MA in 1939. She taught at Grinnell College in Iowa from 1939 to 1942,
and served in the US Navy. Hired as an arts generalist, "at MSU in
1946, Frances recalls that with only three art teachers in the Department,
it was necessary for each of them to be able to teach numerous subjects.
Frances now works mainy with clay but during her years at MSU, she worked
in a wide variety of media. In 1982, the Montana State University
confered her an Honorary Doctorate of Fine Arts. In the more than
a quarter of a century that Frances Senska and Jessie Wilber taught an
at MSU, the list of students coming from their classes is both extensive
and impressive. They were both early members of the Montana
Institute of the Arts and spent much time sharing their time, talents and
energy with other persons throughtout the state who were interested in
the arts.
aFrances Senska makes deceptivly ordinary things, but the beauty
and elegance of her works transform form everyday objects and tasks into
joyful tributes to living. At the heart of a work by Jessie Wilber is a
positive statement expressive of an optimism which is both forthrightly
self-conscious and intellectual accurate. Together these two dedicated
and caring artists, teachers and human beings have had a a profound
effect on the directions and the progress of the arts in Montana.
CERAMISTS
Frances Senska
Although Frances Senska's major fields are pottery and design, she has
also received national recognition in lithography. The Brooklyn Museum,
the Library of Congress, and the Princeton library, in addition to the
Binet Gallery of New York, are among the purchasers of her lithographic
prints. Miss Senska received her training in lithography at the University
of Iowa, where she took her B.A. and M.A. degrees. She has also studied
pottery and design at the Institute of Design in Chicago, the Cranbrook
Academy at Cranbrook, Michigan, and the Pond Farm at Gurneyville, California,
where she studied under the famous Marguerite Wildenhain. To visit Miss
Senaka's home in Bozeman is to see the effects of a sensitive and trained
artistic talent applied to practical living, for she has designed much
of her own furniture, pottery, and silverware.
The broad interests reflected in Miss Senska's training and her artistic
productions reflect an equally broad and varied background. Born in Africa,
where her father was stationed as a medical missionary, she saw a good
portion of the world, its peoples, and its art at an early age. She
is at present serving as assistant professor in the Montana State College
Art Department. Verne Dusenberry, Bozeman, 1952
Basic Ceramics by Ryan Rakalecik
The objective of this video is to show basic wheel throwing techniques
that are used in ceramics today. Some of these techniques are my own and
some are basic techniques that everybody must master.
Wedging: Shown here are both types that are used to wedge the
clay. First the Rams head as it is known is shown and second the spiral
type technique. (note: the spiral technique can be used with larger amounts
of clay while the Rams head is not.)
Purpose of wedging: Wedging is used to remove air bubbles that
are present in the clay body. The use of wedging is also to put uniformity
to the clay and to give strength and structure.
Centering: Note how not all of the clay is centered at the same
time. Using this technique larger amounts of clay can be centered on the
wheel.
To rough center the clay equal pressure is used from both hands as
shown. After this is accomplished downward pressure is applied from the
right hand for right handed throwers and with the use of left hand inward
pressure is used to keep the clay body even on the outside of the clay.
This process is repeated over and over until the desired results are accomplished.
The half moon trimming tool was used to even out the base of the clay
where it was hard to reach the clay.
Opening up the clay body: After the clay has been centered, by using
the right hand run your fingers along the top of the clay toward the center
to find the center of the clay. By using even pressure gently lower two
or three finger into the clay. This will open the body of the clay. Depth
is almost a matter of practice, however as shown you can use a needle tool
to check for the desired depth. Once the desired thickness is reached the
next step is for equaling out the stress that was placed on the clay during
the opening up phase. This is achieved through using your right hand and
moving your fingers with even pressure along the bottom of the pot, going
form outside wall to the center. You will be able to see the clay moving
so that you will be able to know when this is accomplished.
Wall pulling: To get the desired results from the clay even pressure
is used with the finger tips. Your fingers should be even with each other
on the outside of the wall and the inside of the wall.
Key Points to think about: Even pressure of both hands creates a cylinder
shaped vessel. Pressure that is greater on the inside of the vessel will
create a bowl shape vessel. Pressure greater on the outside of the pot
will create a cone shaped vessel. Just about all ceramic pots thrown
start out as a cylinder.
Shaping the Vessel: Shaping of the ceramic article can be achieved
through the use of either your finger pressure or by the use a rib of some
kind. This is a technique that is up to you and what you prefer to work
with. I feel that you should learn to use your finger pressure first then
move onto some other technique as you so desire.
Finishing the pot: The use of the trimming tool was over emphasized
to show the technique for trimming the base of a pot. When picking
up a finished pot off of the wheel your hands should be inverted as shown
here. This will allow for the greatest amount of pressure to be exerted
on the base of the vessel and not on the walls themselves.
Key points to remember when throwing pottery
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Time involved
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Not skipping the process
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Always using constant and equal pressure
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Not getting in a hurry
Special thanks to the Class of AMT Ceramics and Barney Breinza, and recognition
to Ryan Kakalecik for the time and effort for the Demonstration and time
involved.
PHOTO
Above 'Teapot Tower', four 'dragon' teapots, wheel thrown porcelain,
carved and incised under a celadon glaze, mounted on a Left 'Pasta Server
with Two Spoons', porcelain with under glaze carved plinth and stacked
one upon another to a total height of 25 cm decoration, by Dorothy Hafner
(USA), 1984. with the largest being 19 cm wide, by Jane Smith, 1993.
Photograph by S. Baker Vail. Photograph by Andrew Morris.
PHOTO
Porcelain Plate, wheel thrown and incised with a pattern of cranes
under a turquoise blue celadon glaze, 40 cm diameter x 6.5 cm high, by
Elaine Coleman, 1993.
PHOTO
Left 'Viking 11' by Shellie Jacobson, 1993. Hand built porcelain body
Above Ewer, hand built porcelain body with glazes, stains and metal with
glazes, stains and metal additions. Bisque and glaze fired to cone additions,
bisque and glaze fired to cone 04 and reduced in sawdust, 04 and reduced
in sawdust, 14.5 high. 19.5 cm high, by Shellie Jacobson, 1993. Smith.
Photograph by Philip W Smith.
Clay Tiles
Procedure:
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Knead (wedge) the clay to a workable consistency.
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Spread the damp cloth on a smooth table top.
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Place the two sticks on the damp cloth parallel to each other. The space
between the sticks will be the width of the finished tile.
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Roll a ball of clay and place it between the sticks (Ill. 1).
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Flatten the clay by running the rolling pin along the parallel sticks.
The clay will be flattened to the thickness of the sticks (III. 2).
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Cut the slab of clay into tiles, and allow it to become almost dry, or
leather hard (111. 3).
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Plan a design on thin paper, the size of the clay tile.
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When the clay is almost dry, place the paper design over the tile and transfer
the design by retracing the lines with a sharp pencil or instrument.
The following three methods of decoration are possible:
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Incised-scratch the design into the leather-hard clay with a sharp tool.
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Relief-carve away the background areas and allow the design to stand out.
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Inlaid-carve out areas of the design and replace with clay of a different
color, making sure both clays are of the same consistency. See pages
00 and 00 for firing details.
Supplies:
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Local or commercial water-base clay
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Rolling pin
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Two sticks, 1 inch thick
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Damp cloth
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Knife or scissors
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Thin paper
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Sharp pencil
Pocket Pot
Procedure
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Knead or wedge clay, local or commercial.
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Roll out the clay to form a slab, using the rolling pin. water-base clay
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Cut one large piece from the slab, using an open paper clip. This is the
back.
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Rolling pin of the pot.
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Cloth
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Cut a second piece from the slab, one-half the size of the first piece.
Paper clip patterns may be used to facilitate this step.
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Soda straw - Using a soda straw, make a hole close to the top center on
the larger slab bed
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Two flat sticks, 1/2 inch thick piece. Press and carve designs into the
top half of this same piece of clay.
-
Press or carve patterns in the smaller slab bed piece.
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Pressing tools-spools, wad a tight piece of newspaper or toweling and place
it on top of the bottom forks, nails, screws, etc. portion of the larger
slab. Score or scratch the bottom face edge of this larger
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Water container piece of clay.
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Newspaper or paper
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Score or scratch the inside (or underside) edge of the smaller piece of
clay. toweling
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Moisten the fingertips with water or slip and apply to the scratched edges.
Now put them together. Seal by pressing both slabs together at the edges.
-
The newspaper wad keeps the shape open while the pot air dries. When the
pot is completely dry, remove the paper and fire in a kiln.
Wind Chimes
Procedure
-
Knead or wedge clay.
-
Slab clay. (See Clay Tiles, p. 55.)
-
Cut largest piece, the top of the wind chimes, from the clay slab by using
an open paper clip. Any shape may be cut, but be careful of thin projections
they tend to break while drying.
-
The top shape will need one hole for each chime near the lower edge. It
will need at least one hole near the upper edge. These holes are made by
pushing and turning a large soda straw into the clay. Make sure the holes
are far enough away from the edge of the shape so that they will not break.
Press and carve designs on both sides of the hanger by using pressing tools.
-
Cut the chimes from the rest of the slab. Put a hole at the top of each.
Put patterns on both sides of each chime. Remember different shapes are
more interesting.
-
Allow the pieces to dry at room temperature-fire when completely dry.
-
String chimes to hanger by using cords and tying overhand knots.
Supplies
-
Local or commercial water-base clay
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Rolling pin
-
Cloth
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Paper clip
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Two flat sticks, 1/2 inch thick
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Pressing tools-spools. forks, nails, screws, etc.
-
Soda straw
-
Fishing line
Slab Pot
Procedure
-
Local or commercial water-base clay
-
Rolling pin
-
Two sticks, approximately /2 inch thick and 12-20 inches long
-
Damp cloth
-
Knife or scissors
-
Water container for mixing slip
-
Cardboard pattern
A slab pot is built with flat pieces of clay which are joined together
to form a container.
Procedure
-
Knead (wedge) the clay to a workable consistency.
-
Spread the damp cloth on a smooth table top.
-
Place the two sticks on the damp cloth, parallel to each other. The space
between the sticks will be the width of the finished tile.
-
Roll a ball of clay and place it between the sticks (111. 1).
-
Flatten the clay by running the rolling pin along the parallel sticks (111.
2). The clay will be flattened to the thickness of the sticks.
-
Place cardboard pattern over flattened clay. Using it as a guide, cut around
pattern with a knife (111. 3).
-
Using the same cardboard pattern, cut three more slabs and allow to stiffen
to a leather-hard condition.
-
To assemble a pot, score the edge of each slab with a knife (111. 4).
-
Put slip on scored edge (111. 5) and place two pieces together.
-
Prepare a small roll of clay and press into the joint of each corner (111.
6). Continue this procedure until all four sides are together and smoothed
inside and out.
-
Score the edges of a fifth piece, which will be the bottom. 12. Press the
four sides on the bottom and complete (111. 7).
Note: A cylindrical slab pot is made from one slab (111. 8) placed on
a round base (111. 9). Decorations can be done with a syringe filled with
slip of a different color. Squeeze syringe and trail design. Stamp any
design in leather-hard clay.
Kiln
Clay pieces that have just been completed are called green ware and
should dry naturally before being fired in a kiln. Artificial heat is likely
to cause the piece to crack. All decorations must be completed on the product
before the piece is completely dry. When the clay is completely dry
(bone dry), it is ready to be placed in the kiln for firing. Firing will
not only vitrify, or fuse, the clay but will burn out any impurities.
There are numerous kilns of all sizes, shapes, and prices, which are fueled
with gas, oil, coal, or electricity. Most electric kilns use 220-volt current.
The inside firing chambers of table model kilns have a large range and
usually a maximum of 2300F, which is more than adequate. Several inside
firing chamber sizes of electric table model kilns are: (111. 1) 143/8
inches opening, 13'/2 inches deep, 1.37 cubic feet; (111. 2) 17.5 inch
opening, 18 inches deep, 2.63 cubic feet; and (111. 3) 233/8 inch opening,
27 inches deep, 7 cubic feet.
Supplies
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Kiln shelves
-
Shelf supports
-
Kiln furniture (stilts, triangles)
-
Pyrometric cones
-
Kiln wash (Glaze drippings are easily removed from shelves coated with
kiln wash.)
-
Kiln cement (for repairing cracks and chips in kiln wall)
Kiln
Most kilns will have a switch control for low, medium, and high temperatures.
Some will come equipped with a pyrometer, an indicator for reading the
kiln temperature. These are ideal, but much cheaper and equally accurate
are pyrometric cones (111. 4), which are used to indicate fusion.
Three or four of these cones with different fusing points are placed at
a slight angle to one of their faces (not on their edge) in a piece of
pliable clay (III. 4). The clay is allowed to dry, then placed in the kiln
so the cones can be seen through the spy hole in the kiln door. A piece
of fire brick may be necessary to lift the cones high enough to be seen.
The kiln will heat slowly and a periodic check of the cones through the
spy hole will let you know the approximate temperature of the heat as the
cones begin to melt. When the last cone (111. 5) is beginning to melt,
the kiln can be turned off, as the desired temperature has been attained.
A piece fired only once is called bisque, or bisque ware, and it can be
glazed and fired again. A glaze will give the pieces a glasslike finish.
Glazes can be purchased from a commercial company that will give instructions
for use and the temperature cone at which the glaze matures. (Avoid any
glazes not certified by the manufacturer as being free of lead and nontoxic.)
The glaze is applied by spraying, brushing, or dipping. Dipping a piece
in and out of a bowl of glaze may be the most practical method. Finger
marks are removed by daubing glaze on the spots with a brush.
Cone Temperature Chart
Pyrometric Cones-Fahrenheit-Centigrade
Cone 01
2093 1145
Cone 02
2057 1125
Cone 03
2039 1115
Cone 04
1940 1060
Cone 05
1904 1040
Cone 06
1859 1015
Cone 07
1814 990
Cone 08
1742 949
Cone 09
1706 930
Cone 010
1661 905
Cone 011
1643 894
Cone 012
1607 875
Cone 013
1580 860
Cone 014
1526 830
Cone 015
1481 805
Cone 016
1463 795
Cone 018
1328 720
Cone 1
2120 1160
Cone 2
2129 1165
Cone 3
2138 1170
Cone 4
2174 1190
Cone 5
2201 1205
Cone 6
2246 1230
Temperature equivalents figured at firing rate of 300F or 149C per
hour.
Coil Pot
Supplies:
-
Local or commercial water-base clay
-
Modeling tool
-
Small container for mixing slip
Procedure
Method A
Coils built on a pinch pot base as done by the American Indians
-
Knead (wedge) the clay to a workable consistency.
-
Roll a ball of pliable clay between the palms of the hands to form a sphere
approximately the size of a small orange.
-
Hold the sphere in the fingers of both hands. The thumb should be free
to press the clay to form the pot. Keep thumbs pointed up and form the
pot upside down.
-
Press the thumbs gently into the center of the sphere and at the same time
press with the fingers on the outside while rotating the ball of clay (111.
1). 5. Continue pressing with both the fingers and the thumbs while rotating
the clay until the ball is hollowed and the walls are of uniform thickness
(approximately 1/2 inch). Cracks may appear if the clay is too dry, or
if pressed into shape too quickly or forcefully. Repair any such cracks
immediately by gently rubbing the fingers over the clay until they disappear.
-
The pot, if built correctly, will not have any flat areas. To flatten the
bottom of the pot, hold it gently between the fingers with both hands and
tap it lightly on a table top.
-
Roll another piece of clay into round strips or coils of approximately
1/2 inch in diameter, making sure the strip makes a complete turn to insure
its roundness (111. 2).
-
Scratch the top edge of the pinch pot base (111. 3) and apply a thin coat
of slip (liquid clay) over the scratches (111. 4). The slip helps the coil
adhere to the pinch pot base.
-
Place the coil on the slip-covered edge of the base (111. 5). Cut both
ends at the same angle so that they fit snugly (111. 6). Gently press the
coil to the base and fuse the joint both on the outside and inside (111.
7).
-
Scratch the top edge of the first coil, apply slip (111. 8) and add the
second coil (111. 9). Remember to fit the ends together tightly. Gently
press the second coil to the first coil and fuse them together.
-
Repeat procedure ten until the coils create a completed form. 12. Allow
the pot to dry slowly at room temperature.
-
Check pages 59 and 60 for firing details.
Method B
-
Knead (wedge) the clay to a workable consistency.
-
Roll the clay into round strips or coils of approximately /z inch in diameter,
making sure the strip makes a complete turn to insure its roundness (Ill.
2).
-
Wind the strip into a tight coil to the desired size for the base. Fuse
the coil together with a small tool or the fingers until all traces of
the round strip disappear (111. 9). A ball of clay flattened on a damp
cloth to approximately 1/2 inch thickness also makes a good base for a
pot when cut to the desired diameter.
-
Scratch the outside top edge of the base and apply a thin coat of slip
(liquid clay) over the scratches. The slip helps the base adhere to the
first coil.
-
Place another coil on the slip-covered edge of the base. Cut both ends
at the same angle so they fit snugly. Gently press the coil to the base
and fuse the joint both on the outside and inside.
-
Scratch the top edge of the first coil, apply slip and add the second coil.
Remember to fit the ends together tightly. Gently press the second coil
to the first coil and fuse them together.
-
Repeat procedure six until the coils create a complete form.
-
Allow the pot to dry slowly at room temperature.
-
Check pages 59 and 60 for firing details.
Folded Clay Animals
Supplies:
-
Local or commercial water-base clay
-
Rolling pin
-
Cloth
-
Knife
-
Two flat sticks, '/2 inch thick
-
Paper, pencil, and scissors
Procedure
-
Knead (wedge) the clay to a workable consistency.
-
Spread a damp cloth on a smooth table top. Place the two sticks parallel
to each other on the damp cloth. The distance between the sticks will determine
the size of the finished animal.
-
Roll a ball of clay between the palms of the hands to form a sphere and
place it between the sticks.
-
Flatten the ball of clay by running the rolling pin along the parallel
sticks. The thickness of the clay is determined by the thickness of the
sticks.
-
Draw an animal on a piece of paper that is the size of the clay slab. If
desired, the drawing can be scratched directly on the clay.
-
Cut the animal pattern out of the paper and place it on the slab of clay.
-
Hold the paper in place and cut the clay with a knife, following the outline
of the pattern (Ill. 1).
-
Gently remove the clay animal from the slab and curve it into position
(111. 2). The legs will be bent down to make it a self-supporting unit.
Parts of the clay animal can be twisted into various attitudes.
-
Smooth out any rough edges and add textures or features with any modeling
tool.
-
If the clay is too soft to support itself, prop it up with a wad of paper
or clay.
-
Allow the animal to dry slowly at room temperature (111. 3).
-
See pages 59 and 60 for firing suggestions.
Glazing
-
A simple, low fire glaze can be purchased commercially.
-
If no kiln is available, the green ware can be finished by waxing, painting
with enamel, shellac, or varnish, or with tempera paint. Clear plastic
spray, varnish, or shellac can be applied over the tempera paint for permanency.
-
Slip (liquid clay) of different colors can be painted on damp ware for
decoration. The piece must then be dried and fired.
-
Over handling of the clay will cause it to dry rapidly, which in turn causes
cracks or crumbling.
Pinch Pot Procedure
Supplies:
-
Local or commercial water-base clay.
Procedure:
-
Hold the sphere in the fingers of both hands. The thumb should be free
to press the clay to form the pot. Keep the thumbs pointed up and form
the pot upside down. (See Ill. 1, p. 56). Knead (wedge) the clay
until it is of a workable consistency and the air bubbles have been removed.
-
Knead (wedge) the clay until it is of a workable consistency and the air
bubbles have been removed.
-
Roll a ball of pliable clay between the palms of the hands to form a sphere
approximately the size of a small orange.
-
Hold the sphere in the fingers of both hands. The thumb should be free
to press the clay to form the pot. Keep the thumbs pointed up and form
the pot upside down. (See Ill. 1, p. 56).
-
Press the thumbs gently into the center of the sphere and at the same time
press with the fingers on the outside while rotating the ball of clay.
-
Continue pressing with both the fingers and thumbs while rotating the clay
until the ball is hollowed and the walls are of uniform thickness (approximately
1/2 inch). Cracks may appear if the clay is too dry or if it is pressed
into shape too quickly or forcefully. Repair any such cracks immediately
by gently rubbing the fingers over the clay until they disappear.
-
The finished pot, if built correctly, will not have any flat areas. To
flatten the bottom of the pot, hold it gently between the fingers with
both hands and tap it lightly on a table top.
-
Press the end of a key, hairpin, paper clip, etc., into the top edge of
the pot, creating a single and interesting decoration.
-
Allow the pinch pot to dry slowly at room temperature.
-
See pages 59 and 60 for firing details.
Bells and Beads
Supplies:
-
Local or commercial water-base clay
-
Cloth
-
Rolling pin
-
Two flat sticks, 1/2 inch thick
-
Soda straw
-
Tools for pressing or carving into the clay
-
Empty cardboard cone from inside yarn
-
Paper clip
-
Cord or jute to string bells
Procedure:
-
Knead or wedge clay.
-
Roll out the clay to form a slab, using the rolling pin.
-
Wrap the slab around a cone by laying the cone on the center of the clay,
bringing the sides around the cone. Trim away the excess clay with an open
paper clip so that the edges overlap. Seal the edges together by pressing
with fingers.
-
While the clay is wrapped around the cone, trim the bottom and the top,
remembering to keep a small hole in the top of the clay cone. Apply designs
and patterns by pressing and carving with any tools (nails, scissors, spools,
spoons, forks, etc.) available.
-
When finished with patterns, gently remove clay cone from cardboard cone
with a twisting motion. Allow to air dry.
-
With the scraps of the slab left, or a new slab, make the clapper for the
bell by cutting out a shape with an open paper clip. Make sure the shape
will fit inside of the cone. Apply designs or patterns to both sides of
clapper and put a hole near the top by using a soda straw.
The clay can be manipulated in various ways with common objects or instruments
to achieve special effects. Textured objects such as a thimble can be pressed
into the clay to produce a textured surface. Glasses, bowls, and the like
can be forced through the cloy for cut-out shapes. Large pieces of clay
can be drawn across a shredder to produce clay slivers to be used in building
up or decorating pieces. Toothpicks, nut picks, sticks, and other similar
items can be used to manipulate or texture the clay.
Special Effects
-
Make at least two beads (more are nice) by rolling clay into bead size
balls or other shapes and inserting a soda straw through the shape. Make
patterns on the beads and gently remove the straw.
-
Allow all pieces to dry slowly. Fire in a kiln.
-
String bells by putting one end of cord or jute (about 36 to 40 inches)
through the hole in the clapper. Bring the ends of the cord together with
clapper in the center. Make an overhand knot approximately 2 inches above
clapper.
-
Push both cords through the hole in first bead with a twisting motion.
Make an overhand knot just above the bead. String cord ends through the
top of the cone from the inside.
-
Make an overhand knot in cords and string a second bead. Make an overhand
knot (if additional beads are to be added, always put an overhand knot
between the beads). Finish with a final overhand knot at the loose ends
of cords.
POTTERY: History, Equipment, and Materials
History: Pottery is a very ancient form of art. Unlike a painting
or a sculpture, which serves a decorative or viewing purpose only, pottery
served a particle function in the societies where it originated.
In the Southwest of the United states, the first potters were Native
American ancestors, the Anasazi, dating back to A.D. 1200. They built all
their pottery by hand and fired it using a wood fire gathering "earth
colored clay from the local area.
Porcelain was first used in the Orient around A.D. 800. It was later
used in a lower firing form in England in the middle of the eighteenth
century.
What is clay?
Geology is the basis for the art of pottery. Clay is made up of a fine
earthy powder created when erosion, or weathering and disintegration of
rocks containing granite and feldspar. Between the soil surface and
the rocky core of the earth is a thicker layer made up of clay, sand,
and gravely mineral deposits. As the granite and feldspar decompose they
deposit alumina and silica particles. Haolinite is a clay mineral with
a thin plate like formation. It is the most valuable clay for pottery .
When wet, these thin particles stick together like wet playing cards. This
is what gives clay its strength and support. This natural clay found in
the Earth's surface contains impurities, or particles that must be taken
out, such as twigs and other organic matter or larger pebbles. For
pottery making, natural clay is usually amended by adding the right amount
of sand, kaolinite, wood ash, and other ingredients.
Clay Bodies:
Raku- uses a stoneware clay and grog, containing more sand then
earthenware. It is fired at a much higher temperature than earthenware
and is usually porous after the glazing firing. Earthenware- are
typically reddish brown in color due to the iron in the clay. It has a
lower firing. This is a good clay for hand building and sculpture.
Stoneware- is a very durable clay body that can range in color
from light tan to dark brown. Stoneware is fired at a higher temperature
than earthenware. It is popular for hand building as well as sculpture.
China- Bone china is similar to porcelain, yet actual bone ash
is added to the clay to lower the firing temperature. It is very hard,
white, and translucent when thin. It is week when throwing and tends to
warp during firing.
Porcelain- is the highest firing ceramic ware. They are smooth
in texture, white, and easily textured with fine detail. They are very
hard when fired. This makes porcelain a prime choice for commercial products
and castings.
Pottery Vocabulary:
Bisque firing-first firing without glazing. Bone dry clay
that is completely dry and ready to fire. Burnishing- polishing the surface
of leather hard clay.
Coil Built-using rope-like lengths of clay to build ceramic
ware.
Cone- a three-sided pyramid shape made of clay that is used
to detect the temperature of the kiln which will bend and melt at specific
temperatures. Cones are numbered for firing temp.
Feldspar-.mineral that is main ingredient in clay bodies.
Firing- heating a clay object in a kiln to a specific temperature,
like baking cookie dough into a cookie.
Glazing-surface coating of mineral content which is applied
in liquid form which becomes glassy when fired for decoration or sealing
of porous surface.
Grog- coarse, medium, and fine ground clay bisque used to give
clay body strength, reduce shrinkage, and warping.
Kiln-furnace lined with special clay bricks designed for firing
ceramics. Leather hard- clay partly dried but still damp, firm, and easily
carved. Plastieitv- damp clay that is easily formed and holds its shape.
Pug-Mill-machine used to mixing clays and ingredients.
Scoring- scratching lines in unfired clay to allow attached
pieces to bond.
Slab- hand built technique made from rolling out clay with a
rolling pin, creating flat sections of clay.
Slip- a watery clay mixture used as a surface effect or for
adjoining wet clay pieces together.
Throwing- creating ceramic ware on a potter's wheel.
Wedging-twisting clay in a rotating kneading manner to remove
air bubbles and insure a uniform consistency.
Wheel- a rotating wheel for throwing clay containers, electric
or manual.
CERAMICS: A Guide for Clay
Clay is an excellent manipulative art medium that every child, and adult
alike, will love to create with. Included in this lesson packet are many
ideas you may mix and match. It is important that you order clay ahead
of time so that it will be available when you are ready to work. Included
are a few forms for ordering from art distributors. You may have sources
available in your school as well.
The main ingredient in these lessons is clay, yet it is important to
note our featured artist, Frances Senska, who is a Montana artist from
Bozeman, Mt. She won the Governor's Award in 1988 in Visual Arts. She is
primarily a pottery, but uses other media as well.
Included is a packet of tools used for making ceramic ware, but many
tools can be created from ordinary objects found in the home or classroom.
Use your imagination. But remember, clay is a wet substance that dries
hard, yet fragile until fired in the kiln. You will also notice mineral
and clay samples. These are helpful in that the students can feel and see
these basic elements of pottery through the plastic bags. Please stipulate
that the bags must remained closed at all times. Also included is a video
on wheel throwing. Wheels are not always available for classroom use; nonetheless,
it is intriguing to see how the wheel is used to make containers.
A video on Frances Senska also gives a first hand view of a professional
potter, and how she has become what she is today. If there is a potter
in your area or a pottery exhibit in a local museum it would be a great
opportunity for your students to observe these works of art, and possibly,
how they are made.
There are several lessons taken from the A Handbook of Arts and Crafts
for elementary and junior high school teachers, by Wankleman and Wigg.
These can be done in a sequential or a pick and choose manner. Feel free
to add your own ideas and let the students contribute their own also. You
will need to have access to a kiln. If there is not one available in your
school, many times there is a person or hobby shop that does molded ceramics
which are fired in the same kind of kilns. They may be willing to fire
your clay items for you. If not, there are some clays that can be baked
in an oven (school cafeteria,) or air dried.
CLAY CREATION :
CLAY MODELING
BELLS AND BEADS, COIL POTS, FOLDED CLAY ANIMALS, PINCH POTS, POCKET
POT SLAB POTS, WIND CHIMES, BACKGROUND, TOOLS AND SENSKA
Making Clay
Supplies:
Any local clay can be easily transformed into pliable clay for classroom
use by the following method. This same method is used in reconditioning
any unfired clay.
-
Local or commercial water-base clay
-
Two containers for mixing clay (galvanized or plastic buckets, crocks,
earthenware crocks, etc. A tightly fitting lid is desirable.)
-
Hammer or mallet 4. Cloth bag
-
Sieve or piece of window screen
-
Plastic bags or aluminum foil for storing clay
-
A plaster slab is ideal for absorbing excess moisture from the clay
Procedure:
-
Break the moist clay into small pieces and allow them to dry thoroughly.
-
Place the pieces of dry clay into the cloth bag and pound them with the
hammer or mallet until they are almost a powder.
-
Fill the container half full of water and pour the broken or powdered clay
into it until the clay rises above the surface of the water. Moist clay
will not disintegrate when placed in water, so be sure it is bone dry and
broken into pieces. The smaller the pieces, the more quickly the dissolving
process will take place. This process is called slaking.
-
Allow the clay to soak for at least an hour. This period will vary according
to the size of the pieces.
-
Stir the clay thoroughly with a stick or the hands until all the lumps
are dissolved. This clay mixture is called slip.
-
Pour the slip into the second container through the sieve to remove any
foreign matter and allow it to stand overnight. If there is any excess
clear water, pour it off.
-
Remove any excess moisture by placing the clay on the plaster slab. Allow
the water to be absorbed until the clay can be kneaded without sticking
to the hands.
-
Store the clay in a container with a lid, or cover the container with a
damp cloth. Small amounts of clay can be kept moist by using plastic bags
or aluminum foil.
Suggestions on Handling Water Clay
-
Pliable clay should be kneaded (wedged) to remove all air bubbles before
working.
-
Clay objects should dry slowly to prevent cracking. Thinner forms will
dry more quickly than thicker forms. The thin form may be wrapped with
a damp cloth to equalize the drying.
-
Cover the clay objects with a damp cloth or plastic bag to slow the drying
process, or to keep the clay moist from day to day.
-
Moist clay will not adhere to dry clay due to shrinkage.
-
Clay appendages, or details that are to be added to pots or figures, must
be of the same consistency as the piece to which they are to be attached.
The two areas that are to be joined should be scratched with a tool and
covered with a slip (liquid clay) before being placed together. Then, the
joints should be fused into one piece with a smooth tool or the fingers.
-
If hanging plaques are to be made, carve or pierce any holes while the
clay is leather-hard.
-
Dry clay objects (unfired clay is called green ware) must be fired to a
temperature of at least 1500ø F, or 830 C, to be hardened. An electric
kiln is the best method for firing. However, the primitive open campfire
method can be used.
-
Glaze can be applied to bisque (a piece of clay that has been fired once
is called bisque) by dipping, spraying, or with a brush. The piece is then
refired. All glaze must be wiped from the bottom or the foot of the piece
with a sponge or cloth before firing.
Clay Modeling
Supplies:
-
Local or commercial water-base clay
Procedure
Method A
-
Beginning with a basic shape of the object to be modeled, squeeze or push
the clay to form the features (legs, arms, head, etc.). Think of the object
as a whole, rather than as separate parts.
-
Between working sessions, wrap with a moist cloth to retain plasticity.
-
Allow the piece to dry slowly at room temperature.
-
Check pages 59 and 60 for firing details.
Method B
-
Beginning with a basic shape of the object to be modeled, use a modeling
tool to carve away all unnecessary parts until the piece is formed.
Note: Combining parts or sections is another method of modeling, but
not recommended for children. Assembling parts is very important; unless
the two pieces of clay are of the same consistency and combined together
properly, they will shrink irregularly in drying.
BIBLIOGRAPHY
Andrews, T. 1994., Raku a review of contemporary work, Chilton
Book Company, Pennsylvania.
Ball, F. C. & Lovoos, J., 1965., Making pottery without
a wheel, Van Nostrand Reinhold Co., NY.
Cardew, M., 1969., Pioneer pottery, St. Martin's Press, NY.
Lane, P., 1995., Contemporary porcelain materials, techniques,
and expression, Chilton Book Co., Pennsylvania.
Nelson, G.C. 1978., Ceramics, 4th edition, Holt, Reinhart, &
Winston, NY.
Rottenberg, P. 1972., The complete book of ceramic Art, Crown
Publisher, NY.
Wankleman, W. F. and Wigg, P., 1989., A handbook of arts and
crafts for elementary and junior high school teachers, W.C. Brown Co. Dubuque,
Iowa.
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