Lesson Plan

Team Triangles Warm-Up Plan

Students will collaboratively review and apply perimeter calculation by racing to build triangles that match given perimeters, practicing turn-taking and providing positive feedback.

This lesson reinforces key geometry skills (perimeter) while integrating social-emotional learning through cooperative problem solving, promoting teamwork habits and confidence in math.

Audience

Time

Approach

Materials

Prep

Prepare Materials

5 minutes

Step 1

Warm-Up – Math & Manners

5 minutes

Step 2

Team Triangle Challenge

12 minutes

Step 3

Cool-Down – Reflection Exit Slip

3 minutes

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Slide Deck

Perimeter Refresher

Perimeter Formula for Triangles

Example Problem

Quick Practice

Challenge Prompts

Triangle-Building Reminder

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Game

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Warm Up

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Cool Down

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Team Triangles

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