Slab Building: Functional FormsActivities & Teaching Strategies
Active learning works for slab building because it turns abstract concepts like uniform thickness and joinery into concrete, hands-on experiences. Students develop spatial reasoning and fine motor skills while constructing functional objects they can hold and use, which makes the learning immediate and memorable.
Learning Objectives
- 1Construct a functional clay box using slab building techniques, demonstrating control over form and joinery.
- 2Compare the structural advantages of slab building to coiling for creating geometric containers.
- 3Evaluate the effectiveness of scoring and slipping for creating durable clay joins.
- 4Design a clay container with specific functional requirements, such as a lid or specific dimensions.
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Guided Demo: Slab Box Build
Demonstrate rolling a slab to 1cm thickness using guides, cutting rectangle bases and sides, scoring edges, and applying slip. Pairs replicate the steps to assemble a small open box, then decorate surfaces. Allow 10 minutes drying before handling.
Prepare & details
Construct a functional clay object using slab building techniques.
Facilitation Tip: During the Personal Slab Form activity, provide measurement tools and ask students to check their slab thickness every few rolls to build independence.
Setup: Tables/desks arranged in 4-6 distinct stations around room
Materials: Station instruction cards, Different materials per station, Rotation timer
Small Groups: Functional Container Design
Groups brainstorm a useful container like a pencil holder, roll slabs, cut custom shapes, and join with scoring and slipping. Test stability by stacking items inside. Share successes and fixes in a group debrief.
Prepare & details
Compare the advantages of slab building over coiling for creating geometric forms.
Setup: Tables/desks arranged in 4-6 distinct stations around room
Materials: Station instruction cards, Different materials per station, Rotation timer
Whole Class: Slab vs Coil Comparison
Provide pre-made slab and coil samples; class handles both to feel differences in form and strength. Discuss advantages for boxes, then build quick slab prototypes. Vote on best joins.
Prepare & details
Evaluate the importance of scoring and slipping in joining clay pieces securely.
Setup: Tables/desks arranged in 4-6 distinct stations around room
Materials: Station instruction cards, Different materials per station, Rotation timer
Individual: Personal Slab Form
Each student rolls slabs and constructs a unique functional form like a lidded box, focusing on secure joins. Use templates for support. Display and peer-review for join quality.
Prepare & details
Construct a functional clay object using slab building techniques.
Setup: Tables/desks arranged in 4-6 distinct stations around room
Materials: Station instruction cards, Different materials per station, Rotation timer
Teaching This Topic
Start with a clear demonstration of rolling even slabs and the importance of guides to prevent uneven walls. Avoid rushing to joining; let students build confidence in creating consistent slabs first. Research shows that students learn joinery best when they experience failure in a controlled way, so plan for quick repairs and discussions when cracks appear.
What to Expect
Successful learning looks like students creating stable, three-dimensional forms with clean joins and even walls. They should confidently explain why scoring and slipping matter, and adjust their techniques based on feedback and observations during the process.
These activities are a starting point. A full mission is the experience.
- Complete facilitation script with teacher dialogue
- Printable student materials, ready for class
- Differentiation strategies for every learner
Watch Out for These Misconceptions
Common MisconceptionDuring the Guided Demo: Slab Box Build, watch for students who skip scoring and slipping, assuming clay will hold without it.
What to Teach Instead
Pause the demo after joining two sides and let students gently flex the box. They’ll see cracks form where pieces weren’t scored and slipped, then immediately rejoin using the correct technique.
Common MisconceptionDuring Small Groups: Functional Container Design, watch for students who create only flat or shallow forms, assuming slabs can’t rise vertically.
What to Teach Instead
Set a challenge rule: walls must be at least two slab heights tall. Provide examples of boxes with upright walls and ask groups to rebuild if their forms collapse during drying.
Common MisconceptionDuring the Guided Demo: Slab Box Build, watch for students who roll slabs unevenly, resulting in lopsided boxes.
What to Teach Instead
Provide rulers and guides for thickness checks every few rolls. Model how to adjust pressure on the rolling pin to maintain even thickness, and have students compare their slabs side-by-side to self-correct.
Assessment Ideas
During the Guided Demo: Slab Box Build, observe students as they score and slip. Ask: 'Why are you scratching the clay here?' and 'What does the slip do when you press the pieces together?' Note student responses to gauge understanding of joinery techniques.
After Small Groups: Functional Container Design, have students swap containers with a partner. Ask them to identify one strong join and one area that could be improved, providing a specific suggestion for strengthening the join. The original maker then reflects on the feedback.
After the Personal Slab Form activity, students draw a simple diagram of two clay pieces being joined. They must label the 'score marks' and the 'slip' and write one sentence explaining why both are necessary for a strong bond.
Extensions & Scaffolding
- Challenge students to create a slab-built container with a lid or a modular system that connects to another student’s form.
- Scaffolding: Provide pre-cut templates and thicker slabs for students who struggle with cutting and joining.
- Deeper exploration: Introduce surface treatments like texture plates or stamps to personalize functional forms.
Key Vocabulary
| slab building | A clay construction method where flat sheets, or slabs, of clay are cut and joined together to create forms. |
| scoring | Scratching cross-hatch lines onto clay surfaces before joining them, creating a rough texture for better adhesion. |
| slipping | Applying a mixture of clay and water, called slip, to scored clay surfaces to act as an adhesive for joining pieces. |
| slip | A liquid mixture of clay and water used to join pieces of clay together, acting like glue. |
| template | A pattern or guide used to cut out precise shapes from clay slabs for consistent construction. |
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