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IB Design Technology
SL · Lesson 29 · IA Day 8 — Generate Full Range of Redesign Ideas
01 / 08
Lesson 29 · Unit 4 · IA Day

IA Day 8 — Generate Full Range of Redesign Ideas

Turn your early seeds into a broad evidence-driven solution space before selecting the three strongest feasible directions.

80 minutesMini-lesson + work timeSL Design Project
Today’s question

Do your ideas represent genuinely different ways to solve the problem?

The goal is to leave class with visible evidence—not just ideas in your head.

Do your ideas represent genuinely different ways to solve the problem?01
15 minutes

Generate broadly first; present the best three later.

Range

Explore more than the final three.

Avoid treating the first three ideas as automatically “best.”

Feasibility

Use models / drawings / CAD / images.

Choose representations that help test whether the idea can work.

Development

Research + feedback may change ideas.

Highlight new evidence that enables iterative development.

Criterion C rewards feasible, annotated ideas and evidence-based comparison.02
Before work time

Label the main design strategy behind each idea.

IdeaArchitectureInteractionArrangementDistinct enough?
AModularSlideFront accessYes
BOne-pieceFlexVerticalYes
COne-pieceSlideFront accessMaybe too similar to A
If two ideas share almost every core decision: deliberately force a different direction.
Diversity should be visible in core design decisions.03
Representation choice

Use the cheapest medium that answers the uncertainty.

Sketch

Form + feature ideas

Paper/foam model

Scale + interaction

CAD

Geometry + fit

User feedback

Preference + usability

Do not wait for high-fidelity modelling before asking useful questions.04
Independent IA work

Expand → annotate → test lightly → shortlist.

0–15 min

Expand

Push your range to at least 8–10 concepts.

15–30 min

Develop 5

Add stronger annotations and key dimensions/features.

30–45 min

Quick evidence

Model / compare / collect fast user reactions.

45–60 min

Shortlist

Identify the three strongest directions and what still needs testing.

Your shortlist should be evidence-informed, not aesthetic-only.05
Quality check

Every developed idea should communicate all key features.

1
What the feature is / how it works.
2
Which user need or specification it addresses.
3
Any key dimension, material logic or mechanism that affects feasibility.
4
What research / feedback / test influenced development.
A third party should be able to interpret the concept without you standing beside it.06
Before leaving

Show evidence for three claims.

“My ideas are diverse.”

Point to different architectures / interactions / arrangements.

“My ideas are feasible.”

Show model/CAD/research evidence or explain the next test.

“My ideas respond to B.”

Trace key features back to specifications and problem statement.

Criterion C begins with visible evidence.07
Exit ticket

Before you leave…

1. Circle your current three strongest ideas.
2. For each, write one unresolved feasibility question.
3. Identify one idea that changed because of feedback or additional research.
Next lesson

Technical Drawing Communication

Keep the evidence chain moving: user → research → decision → test.

Curriculum alignment
IA Criterion C feasible annotated redesign ideas · testing against design specifications · user feedback · B2.1.10–11.
Lesson complete8 slides
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IB Design Technology SL · Lesson 2908
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