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Transformations Unit – Rotations
9, 8, 12, 11, 10
Title – Transformations Unit – Rotations
By – Cornelia Taran
Lesson Plan 3: Rotations
- The students will identify and locate rotations.
- 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:
- Transformation tool
- Navigation through Geometry, NCTM
- Translucent paper
- Pictures with rotations
Development of Lesson:
- The students will identify and perform rotations.
- Anticipatory Set:
- Show pictures that represent rotations.
- 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.
- Draw a shape on translucent paper. Draw a point to serve as the center of rotation and draw the angle of the rotation.
- 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.
- 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.
- Trace the image onto the original sheet. Label the original figure and the rotated figure.
- Use this website for students with mild learning disabilities to practice the concepts.
- Formative – monitor and provide feedback.
- Find the image of a figure under a 180
E-Mail Cornelia Taran !