Little Lab Coats
Pencil Holder Redesign Reference Card
Grade 1
A good engineering solution matches the problem, criteria, and evidence from tests.
Unit sample
1-ETS1 ยท Engineering Design
Free Little Lab Coats sample for teaching the big idea at home.
Key vocabulary
problemcriteriasolutionmodeltestredesign
What to notice
- Criteria tell what success means.
- Testing gives evidence.
- Redesign uses evidence to improve a solution.
Materials snapshot
- Index cards or scrap paper
- Tape
- 3 pencils or crayons
- Small cup optional
- Ruler optional
- Worksheet
Talk-about prompts
- What does the holder need to do?
- How will we test it fairly?
- What did your redesign change?
Why it matters
A strong answer includes the problem, criteria, test result, and the improvement made for version 2.
Family bridge: This card helps parents coach the evidence sentence with quick, concrete language at home.