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Transformations Unit – Rotations

Subject:

Math  

Grades:

8, 9, 10, 11, 12  

Title – Transformations Unit – Rotations
By – Cornelia Taran


 

Transformation Unit:

Lesson Plan 3: Rotations

Content:

    The students will identify and locate rotations.

Benchmarks:

  • G3.1: Distance-preserving transformations – isometries
  • METS 3.a.5: Students use online tutorial and discuss the benefits and disadvantages of this method of learning.

Learning Resources and Materials:

Development of Lesson:

      Introduction:

 

        Objectives:

          The students will identify and perform rotations.

 

        Anticipatory Set:

          Show pictures that represent rotations.

 

        Lesson:

        • A rotation is a transformation that turns a figure about a fixed point called the center of rotation. An object and its rotation are the same shape and size, but the figures may be turned in different directions

        • The angle of rotation is 90o, the direction is counterclockwise and the point of rotation is P.

 

      Methods/Procedures

      1. Draw a shape on translucent paper. Draw a point to serve as the center of rotation and draw the angle of the rotation.
      2. Place a second sheet on the top of the original. Trace the figure, the vertex of the angle of reflection and one ray of the angle.
      3. Place the second sheet under the original so everything is aligned. Place your pencil tip on the vertex of the angle. Turn Sheet 2 until the ray is aligned with other ray of the angle on Sheet 1.
      4. Trace the image onto the original sheet. Label the original figure and the rotated figure.

 

 

      Assessment/Evaluation:

        Formative – monitor and provide feedback.

 

      Closure:

        Find the image of a figure under a 180

o

      rotation.

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