Activity 01
Pairs: Cardboard Shelter Builds
Pairs select materials like cardboard, straws, and tape to construct a simple shelter model for a scenario, such as animal protection. They test stability by adding weights like books, then label parts to explain functions. Pairs swap models for peer testing and feedback.
Compare the benefits of physical versus digital models for different projects.
Facilitation TipDuring Cardboard Shelter Builds, circulate to ask guiding questions like, 'What part of your shelter will hold the books? Show me how it works.'
What to look forPresent students with two simple design challenges (e.g., a better way to carry books, a new playground swing). Ask them to choose one challenge and quickly sketch or build a simple physical model representing their idea. Observe their choices of materials and how they represent the function.
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Activity 02
Small Groups: Digital Low-Fi Sketches
Small groups use a simple drawing app or paper to create digital-style prototypes of a class project, like a recycled toy. They add annotations for moving parts and share screens. Groups vote on clearest models and suggest one digital tweak.
Explain how a simple model can convey complex ideas.
Facilitation TipIn Digital Low-Fi Sketches, model how to use basic tools (e.g., shapes, colors) to show function, not decoration.
What to look forAfter students have created physical and digital models for the same design, facilitate a class discussion. Ask: 'When would it be better to show your idea with a model you can hold? When would a digital model be more helpful? Give an example for each.'
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Activity 03
Whole Class: Model Comparison Challenge
The class builds two versions of the same idea: one physical with craft items, one digital via shared tablet sketches. Students test both for ease of change and clarity, then chart pros and cons on a class poster. Discuss findings as a group.
Design a low-fidelity model of a proposed solution.
Facilitation TipFor the Model Comparison Challenge, set a two-minute timer for groups to agree on one feature that makes their models clear and one that could be improved.
What to look forStudents display their low-fidelity models (physical or digital). Provide students with a simple checklist: 'Does the model show what the design does? Is it easy to understand? Can you suggest one way to make it clearer?' Students use the checklist to give feedback to one peer.
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Activity 04
Individual: Quick Clay Prototypes
Each student molds air-dry clay into a low-fidelity model of a personal design solution, like a lunchbox organizer. They photograph it with labels and present to a partner. Revise based on one piece of partner advice.
Compare the benefits of physical versus digital models for different projects.
Facilitation TipDuring Quick Clay Prototypes, remind students to keep shapes simple and focus on the core idea they're testing.
What to look forPresent students with two simple design challenges (e.g., a better way to carry books, a new playground swing). Ask them to choose one challenge and quickly sketch or build a simple physical model representing their idea. Observe their choices of materials and how they represent the function.
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Generate Complete Lesson→A few notes on teaching this unit
Teachers should treat this topic as a cycle of build-test-share, not a single outcome. Start with low-fidelity materials to keep focus on function over finish. Use routines like think-pair-share after building to help students articulate ideas before refining them. Avoid over-directing; instead, ask open questions that guide students to notice what works and what doesn’t in their own models.
Successful learning looks like clear communication of a design idea through a low-fidelity model, supported by simple explanations or labels. Students should be able to explain what their model does and why they chose its materials or shapes. Peer feedback should focus on clarity and function, not perfection.
Watch Out for These Misconceptions
During Cardboard Shelter Builds, watch for students who focus on making their shelter look like a real house rather than showing how it holds books.
Prompt them with, 'Point to the part that keeps the books off the floor. Could a simple box or shelf show this better than detailed walls?' Then ask them to rebuild with that focus.
During Digital Low-Fi Sketches, watch for students who add colors, patterns, or extra shapes that distract from the core function.
Ask, 'What does this shape do? Does adding glitter help someone understand how the swing moves?' Guide them to delete non-functional elements and label key parts.
During the Model Comparison Challenge, watch for students who assume the 'best' model is the one that looks most realistic or detailed.
Have groups compare function first: 'Which model makes it easiest to see how the bridge supports weight?' Then ask, 'What details do we actually need to show that?'
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