Sustainable Design Studio · Lesson 8: Prototyping

Year 9–10 Technology. Students construct physical or digital low-fidelity prototypes, annotate 3 material selection justifications, and write Design Journal Section 8.

Sustainable Design Studio · Lesson 8

Studio build: make the thing

Ākonga build a prototype good enough to be tested — the point is not finish quality but whether the idea can be evaluated.

  • Design Studio move: A testable prototype
  • Evidence it produces: A build that permits the success test to be run
Other teaching approach: Applied Sustainable Systems Survey →

Lesson at a Glance | He Tirohanga Whakamua

Do NowWhy a scrappy prototype beats a pretty drawing10 min
Prototype BuildConstruct physical model or annotated digital wireframe20 min
Material JustificationAnnotate 3 material choices with LCA reasoning10 min
Design JournalWrite Section 8: Prototype Documentation10 min
Exit Photo/DiagramCapture prototype ready for Lesson 9 user testing5 min

Ngā Whāinga Ako | Learning Intentions

Students will know

  • That the purpose of prototyping is to make design assumptions testable, not to produce a finished commercial product.
  • How material choices (embodied energy, local sourcing, end-of-life recovery) determine whether a design brief is satisfied.
  • Why a simple, well-reasoned prototype beats a polished, unexplained model.

Students will demonstrate

  • By building a low-to-medium fidelity prototype (cardboard, bio-materials, 3D CAD, or wireframe) representing their redesigned product.
  • By annotating 3 specific material selection justifications in Design Journal Section 8.

Do Now | Tīmatanga Whakaaro (10 min)

Prototyping Philosophy:

"If a picture is worth 1,000 words, a physical prototype is worth 1,000 meetings. Why?"

Unpack: A drawing allows you to hide flaws (e.g. how a joint connects, how a battery is accessed, how a user holds it). A physical or interactive prototype forces you to confront reality immediately. Don't worry about cosmetic beauty today — focus on functional mechanics and material honesty.

Prototyping Options & Material Selection (20 min)

Students build their prototype using one of three approved pathways:

📦 Option A: Physical Cardboard/Bio-Model

Use card, timber scraps, harakeke, or bio-plastics to model physical form, disassembly joints, and internal component layout.

💻 Option B: Digital 3D CAD / Mockup

Use Tinkercad, Onshape, or Blender to model 3D components, showing exploded assembly views and material tags.

📱 Option C: Interactive UI/UX Wireframe

For software/app technology problems, use Figma or paper wireframes to map user flows, energy-saving dark modes, and repair guides.

Activity: 3 Material Justifications (10 min)

On your prototype or journal entry, write 3 explicit material annotations following this formula:

"I selected [Material A] instead of [Material B] for [Component X] because [Material A] has [Lower carbon / local sourcing / easy repairability]."

Example: "I selected recycled aluminium instead of virgin plastic for the outer casing because aluminium can be recycled infinitely in NZ without quality loss, whereas plastic degrades after 1–2 cycles."

📓 Design Journal — Section 8: Prototype Documentation

Students open their Design Journal and write Section 8:

Section 8 Requirements:

1. Prototype Photo / Diagram: Insert a clear photo or annotated diagram of your prototype.

2. Key Features Callout: Label how your prototype demonstrates disassembly, repair, or energy efficiency.

3. 3 Material Justifications: Include your 3 completed material selection annotations.

Exit Verification | Ka Mutu Hoki (5 min)

Exit Check:

"My prototype is constructed, documented with 3 material justifications, and ready for Lesson 9 user testing."

Teacher Planning & Curriculum Alignment

NZ Curriculum Alignment (Technology — Phase 3 / Years 9–10):

  • Outcome Development & Evaluation: Undertake functional modelling to test design concepts and evaluate material performance against brief specifications.
  • Technological Products: Justify material choices based on performance, environmental footprint, and end-of-life recovery.

Vocabulary: Low-fidelity prototype, functional modelling, material annotation, embodied carbon, disassembly joints.