Reflection: Grappling with Complexity Becoming More Familiar with the Rules for Transformations - Section 2: Going Over the Homework


In problem number 2 of the worksheet, the second transformation that the students are asked to identify is actually not a single transformation, but a combination of transformations.  When I asked for the answer for this diagram, most students simply responded that it is a rotation, but several students argued vehemently that it could not possibly be a single rotation; that it could only be accomplished by at least two successive transformations.  After about five minutes of heated discussion and drawing diagrams on the board, they were able to persuade their classmates of this (and chided me for making up a deficient problem!). (More MP 3!)  Already, without having mentioned compositions of transformations, the students were themselves exploring this concept - it was pretty cool to see!

  Grappling with Complexity: Foreshadowing - in math class!
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Becoming More Familiar with the Rules for Transformations

Unit 4: Transformations
Lesson 2 of 6

Objective: SWBAT perform eight standard transformations fluently and identify these transformations when examining preimages and images.

Big Idea: Name that transformation! Students will work at identifying transformations performed upon geometric figures.

  Print Lesson
Math, Geometry, Constructions and Transformations, dilation, reflection, orientation, transformation, image, isometry, rotations, translations, glide reflection, preimage, perpendicular bisectors
  90 minutes
image name transformation
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