## Reflection: Intervention and Extension Proofs using Postulates - Section 3: Activity

My students were able to complete the first two proofs, but had difficulty with the last two. In order to help them, I gave them some statements and asked them to write the reasons in the third proof. Then for the last proof, I gave the students some reasons and asked them to write the statements. Some of the students were able to complete the proofs without my scaffold; however, when I teach this lesson again, I will prepare two versions of the activity sheet. Some students will work on a sheet with more of the simple proofs that have the scaffolds and others will work on the current sheet.

Intervention and Extension: Proofs using Postulates

# Proofs using Postulates

Unit 6: Introduction to Geometric Proofs
Lesson 6 of 10

## Big Idea: Students will explore the equality postulates used in geometric proofs.

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Standards:
Subject(s):
Math, Geometry, Proofs, postulates, logic
45 minutes

### Marisa Laks

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