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Representing and Combining Transformations
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Homework
  • Improving Individual Solutions to the Assessment Task (10 minutes)
      • Return their original assessment task Transformations to the students, together with a blank copy of the task
        • Look at your original responses, and think about what you have learned in this lesson.
        • Using what you have learned, try to improve your work.
      • If you have not added questions to individual pieces of work, then write your list of questions on the board.

      Students should select from this list only the questions they think are appropriate for their own work.

  • Solutions: Transformations
    • 2a. Reflection over the line y = −x.

      2b. Rotation 90° counterclockwise around (0,1).

      3. Reflection over the line y = x

  • Solutions: Collaborative Work
    • The following connections exist between pairs of shape cards:

      Pairs of Shapes Transformation

      A onto B

      Reflection over the x-axis.

      F onto D

      Clockwise rotation of 90° around (2,0).

      E onto C

      Reflection over the line y = x.

      A onto D

      Reflection over the line y = −x.

      A onto E

      Clockwise rotation of 90° around the origin.

      D onto C

      Clockwise rotation of 90° around the origin.

      B onto F

      Translation +2 units horizontally and −2 units vertically.

      D onto E

      Reflection over the y-axis.

      C onto A

      Reflection over the y-axis.

      C onto B

      Rotation of 180° around the origin.

      B onto D

      Clockwise rotation of 90° around the origin.

      B onto E

      Reflection over the line y = −x.

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