Reflection: Adjustments to Practice Parallel Lines Intersected by a Transversal - Section 1: Do Now


As students were beginning the Do Now, I realized they didn't remember exactly how to construct a line parallel to a line through a point not on the line. At first, I instructed them to refer back to their notes from the unit on constructions. This worked for some of the students, but others still needed more of a refresher. I called one of the students who was able to perform the construction up to the document camera to show and explain the steps while I wrote the steps on the white board. This helped the other students construct the parallel lines. 

  Adjustments to Practice: Parallel Lines Intersected by a Transversal Reflection
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Parallel Lines Intersected by a Transversal

Unit 6: Introduction to Geometric Proofs
Lesson 8 of 10

Objective: SWBAT write simple formal proofs about angles formed by two parallel lines intersected by a transversal.

Big Idea: Students will build on prior knowledge about the relationships between angles and parallel lines to write formal proofs.

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11 teachers like this lesson
Math, Geometry, Proofs, Proof of Parallel Lines, logic
  45 minutes
parallel lines student work resized for lesson image
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