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GRADE
LEVEL: PINCH METHOD 3 - 8 SLAB METHOD 6 - 12
Focus:
This is a lesson plan designed to teach two basic methods of hand built
pottery - pinch and slab, using a polymer clay that needs no mixing,
does not dry out unless exposed to heat, (so can be left uncovered
in between classes), and can be decorated in a number of innovative
techniques.
Project Application:
The
photocopy transfer designs provided are examples of authentic pottery
surface decorations. Sources date from ancient to modern times, and
represent native pottery crafts and designs from the Orient, Africa,
Greece,Ancient Mexican, Viking and the Indians of the Americas.
Southwestern Indian Design,North American Indian Designs,NorhtWest Coast Indian Designs.
Transfer Technique:
Note:
Laser printer toner, Xerox (copy machine) toner, will all transfer to the Sculpey III. Inkjet images will
NOT transfer. If you use an inkjet printer, take a Xerox copy of the
image or design page, and use that for your transfers.
Roll
a sheet of Sculpey to l/8" thickness. Choose design from transfer
sheet ,
cut out and place face down on the clay. With fingertips or a roller,
press so that all of the design areas have contact with the clay.
LEAVE PAPER IN PLACE and bake the clay sheet on an ovenproof glass
baking dish for l0 - l5 minutes. Avoid scorching as clay is rolled
very thin and make cure quickly, but do not under bake or it will
be weak.
Let clay cool
completely before handling. Then, very carefully peel off the photocopy
sheet. Because of the thinness, the clay will have some flexibility.
Use sharp scissors to trim excess clay from around the design border
to form a patch. The patches can be applied to the actual pottery
with heavy, white craft glue or silicone glue. (The teacher should
apply the silicone glue). Hold patches in place on pottery by securing
with masking tape. Do not place tape directly on the actual design,
as it may be damaged. Protect it with a sheet of paper. Two or more
motifs from the same origins may be used together on one pottery piece
- i.e., a border design and a major design. (see illustrations).
SUPPLY LIST:
-
Sculpey III -
about 2 - 4 oz. per student
- Assorted simple
tools
- Photocopy
designs for transfers
- Rolling pins
or Roller
- Scissors
MANY FINISHES
CAN BE USED:
- Waterbase liquid
acrylic paint, applied with a variety of tools such as brushes, sponges, rushed paper or toothbrush (spattering) - for special effects
- Metallic waxes
to highlight raised surface patterns
-
Sculpey Glazes
for a glossy or semi-gloss finish oPhotocopy transfers for symbolic
or pictorial decoration (interdisciplinary lesson plan included
under Slab Method section).
Pinch Method:
(suitable for grades 3 - 8):
Knead
Sculpey for a minute to condition. Roll into a ball. Push thumbs into
the center to form opening. Pinch sides lightly and evenly to hollow
out. Form into a round or oval bowl. Keep walls and base l/2" even
thickness (based on one slab (4 oz.) of clay). If less clay is available,
reduce thickness and size of pottery. Walls can be smoothed with fingers
prior to baking, or sanded after baking. If a textured surface is
wanted, this can be done with a variety of simple tools that can be
pressed into the clay before baking (e.g. plastic fork, plastic toothpick,
comb, screening, screw and nail heads, etc.). Coils, dots, and other
shapes can be pressed onto surface for relief designs (roughen surfaces
first to have better adherence). Bake at 275° F. (l35° C.) for l5
minutes for smaller pottery (2 oz.). For larger pottery with thicker
walls, (4 oz.), bake for 25 - 30 minutes.
Slab Method:
(suitable for grades 6 - l2):
Knead
Sculpey for a minute to condition. Roll into a fat log if making a
rectangular slab; roll into a ball if making a round or square slab.
For smaller size (2 oz.), roll to flatten to 1/4" thickness; for larger
size (4 oz.), roll to flatten to l/2" thickness. Keep all thickness'
consistent in one piece of pottery.
Make a paper or
cardboard pattern for bottom and sides (see pattern examples - Section
A). Lay pattern(s) on clay and cut around with a toothpick or other
sharp object. Join two of the sides together by placing a rope of
clay inside and smoothing into the crack. Do the same with the other
two sides. Then join the two halves. Cut a bottom to fit. Join sides
to bottom using the same inside coil method. A round or oval canister
type of pottery can also be made by cutting a circle or oval for the
bottom and a rectangle for the canister. Join the canister seam first
with a coil. Then place the canister onto the bottom and join with
a coil. Bake at 275° F. (l35° C.) for I5 minutes for l/4" walls and
30 minutes for l/2" walls. Decorate with photocopy designs from sheets
provided.
Template Pattern:
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