Reflection: Connection to Prior Knowledge Parallel and Perpendicular Cross Sections - Section 2: Explore


The idea of cutting and making posters made for high energy in class. There were a lot of questions about what counted as a cross section. We had an opportunity to talk about parallel and perpendicular and I saw students justifying their cuts. I think my students were excited about the presentations and explaining to their classmates.

  Poster Maker Energy
  Connection to Prior Knowledge: Poster Maker Energy
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Parallel and Perpendicular Cross Sections

Unit 3: Geometric Measurement
Lesson 2 of 5

Objective: Students will be able to describe polygons formed when 3D figures are cross sectioned both parallel and perpendicular to the base.

Big Idea: This lesson is awesome because it allows students to apply what they have learned and create some 3D figures and cut them apart to see the cross section. Students will also have an opportunity to review vocabulary in this lesson.

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23 teachers like this lesson
Math, Geometry, 7th grade
  35 minutes
cross section
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