Wednesday, October 7, 2015

Making Clay Bowls Part 1: Slab Rolling, Slump/Hump Molds & Foot Rings

Our first annual EMPTY BOWLS DINNER & FUNDRAISER will be held on 
Friday, April 1, 2016, 6-9pm
in the HS Cafeteria

On 10/6 and 10/7 Clay students watched Ms. Held demonstrate how to roll slabs and then lay these slabs of clay onto the hump or into the slump mold of the bowl of their choice. She then demonstrated how to add a foot ring (or stand) to bottom on the bowls to give them a more professional look. Below are some photographs of students wedging their clay (removing air bubbles), rolling slabs, fitting their clay slabs onto their molds and then adding foot rings. The bowls will need to dry out a bit, so the clay becomes leather hard and able to hold its bowl shape once the mold is removed. The next class Ms. Held will demonstrate how to beginning adding our food inspired imagery to the interior and exterior of our bowls. 

The Food-Inspired Bowl construction is due on:
11/5 for B day students & 
11/6 for G day students. 

Below is also a list of the vocabulary related to this unit. The unit quiz, which will consist of multiple choice and short answer questions is scheduled for 11/5 for B day students & 11/6 for G day students. We will have a in-class quiz review the class before the quiz is given.

  
Student pound and knead the clay to remove air bubbles.

  
Students roll out even slabs of their clay to be fitted over their bowl (hump) molds.


Students gently lay their clay over their hump bowl mold (there is a piece of plastic bag in between the clay and the mold to prevent the clay from sticking to the mold).

Students trim away excess clay.

 Students add a clay foot ring to the bottom of the bowl.



VOCABULARY

FOOD-INSPIRED BOWL PROJECT
1. Four Stages of Clay:
  • Plastic-Wet and malleable; can be wedged, bent, twisted, and shaped.
  • Leather hard-Stiff, but not dry; able to cut it; add texture/details, and attach slabs together.
  • Bone dry-Clay has lost all visible moisture; it is very fragile in this stage and must be handled delicately; no MORE clay is to be added at this time.
  • Bisque-Clay has been fired in the kiln; clay is hard and durable; still to be handled with care.

2. Ceramic-The general term used to refer to clay projects that have been fired in the kiln.

3. Fuse-To connect two pieces of clay together and make the seams disappear.

4. Hollow-out-To remove excess clay from a solid form to allow air to circulate. This ensures even drying and the circulation of hot air when it’s being fired in the kiln.

5. Slab-A flat evenly rolled piece of clay.

6. Score-A pin tool or other pointy tool is used to make scratch marks or grooves onto the surface of clay pieces, which are to be attached to one another.

7. Slip-A mixture of clay and water used as an adhesive on scored clay surfaces to help connect two separate clay pieces and ensure they don’t break apart during the drying or firing process.

8. Slump/Hump Mold-Using a plastic, metal or plaster mold to make a clay form. Typically a clay slab is rolled and either laid into the mold (slump) or on top of the mold (hump).

9. Wedging-Mixing and removing the air from plastic clay by kneading it, cutting it with wire, and slamming the pieces together.

10. Vent-hole-Small openings created in our clay forms to allow air to circulate inside the form.

SURFACE DECORATION TECHNIQUES:
1. Carving-Creating a design on a clay surface by cutting away or removing clay using a variety of tools.

2. Impression/Stamp-A mark or indentation produced by pressing various objects or textures onto a leather hard clay surface.

3. Piercing-Shapes that are cut out of the surface of your clay.

4. Relief-A thin, flat form or image that is raised up from the surface of the clay.

5. Sculpture-Using your hands to shape a three-dimensional form.

6. Underglaze-Special colored paints (oxides) that can be painted onto leather hard clay to add color and design before the first firing process.

ART CONCEPTS:

1. Decorative Ceramics-Objects made from clay that do not necessarily have practical use, but instead express an idea or offer visual appeal.

2. Functional Ceramics-Objects made from clay that have a practical use, such as a container to hold objects, a mug to drink out of, a plate or bowl to eat off off, or tiles used to cover a bathroom floor.

3. Symbol-A form, image or subject in a work of art that represents or stands for an idea.

No comments:

Post a Comment