## Reflection: Writing Across the Disciplines Regular Polygons - Section 1: Writing Exercise - Explaining Triangle Congruence

An essay in math class? I wasn't sure how this would go.

I must admit that I implemented the task in response to administrative pressure: "more writing in the classroom." However, I am glad that I did. It was a really productive exercise for the students. It was a rich formative assessment  for me. After reading their essays, I had a much better picture of how well my students were able to explain triangle congruence!

Why an Essay?
Writing Across the Disciplines: Why an Essay?

# Regular Polygons

Unit 5: Polygons and Congruent Triangle Proofs
Lesson 6 of 6

## Big Idea: The students work together, applying their knowledge of polygons to numerical problems involving regular polygons.

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Standards:
Subject(s):
Math, Geometry, exterior angle, regular polygons, polygons (Determining Measurements), Polygon, interior angles, equilateral, equiangular, triangle congruences
90 minutes

### Beth Menzie

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