## Reflection: Complex Tasks Trapezoids - Section 2: Trapezoid Coordinate Geometry

I teach an honors geometry course. I have a lot of students who enjoy a good challenge. The challenge problem, the solution of which you can see in the video in this section, gave my students a chance to use their algebra, spatial reasoning, and problem-solving skills to try and earn some extra credit points.

Students spent a lot of time on the challenge and several of them got a partially correct solution. However, no student got both of the possible solutions. After they had turned their work in, this gave me an opportunity to show students how to get the second solution. Students were fascinated with the second solution and typically had a reaction like "Oh yeah! Why didn't I think of that?"

This just reminded me how every now and then it's nice to have a really tough problem that not everyone is expected to solve but everyone has an opportunity to solve.

Challenging Students

# Trapezoids

Lesson 7 of 8

## Big Idea: What's PART backwards and the rest ezoid?...Okay maybe that's too easy...but this lesson on trapezoids is sure to provide a challenge or two.

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Standards:
Subject(s):
Math, Geometry, Polygons, properties of quadrilaterals
40 minutes

### Anthony Carruthers

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