1. Challenge: Students choose the first obvious idea.
- Tip: Require three alternatives before selecting.
- Trick: Use “What if…?” twists.
2. Challenge: Fear of being wrong or silly.
- Tip: Encourage “wild ideas welcome.”
- Trick: Teacher models a humorous invention.
3. Challenge: Uneven participation in pairs.
- Tip: Assign rotating roles (drawer, idea generator, explainer).
- Trick: “Idea ping-pong” — alternate phrases.
4. Challenge: Difficulty expressing the idea clearly.
- Tip: Provide simple sentence frames.
- Trick: Students act out what the invention does.