Compare two shades

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For the grown-up

Each lesson takes about 15 to 20 minutes.

Big idea

We can use a test to compare two shade designs.

Words

compare consider both
gap open space
steady not tipping
improve make work better

All words on the Word Wall

Talk together

Which parts helped each design?
What was hard about each?
What would you change next?

Get ready

Two student-built shades, equal ice cubes, matching plates, timer and a separate sunny control plate.

Safety

A grown-up stays close. Never look at the Sun; use hats, sunscreen and shade breaks. The adult checks surfaces first; do not touch anything hot.
A grown-up handles ice with a spoon or cloth; avoid prolonged skin contact. Test ice is not for eating; wipe meltwater.
A grown-up stays within reach of water. Use small amounts in shallow unbreakable trays, away from power; wipe spills and wash hands. Do not drink test water.
Only a grown-up uses scissors or cuts cardboard. Keep small pieces out of mouths; use large cards.

How to help

Let your child listen, look and try before you explain. Point to the next picture if needed. Accept drawing, pointing or a voice response; writing is optional. Save the child’s own work with a date.

Standards

K-PS3-2, K-2-ETS1-3