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iLearn Grade 8 Math Session 8.2

Enrich Transformations and Polynomials Instruction with Technology Using Geometer’s Sketchpad to Explore Transformational Geometry. iLearn Grade 8 Math Session 8.2. Focusing Questions. What are other strategies of teaching transformational geometry?

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iLearn Grade 8 Math Session 8.2

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  1. Enrich Transformations and Polynomials Instruction with Technology Using Geometer’s Sketchpad to Explore Transformational Geometry iLearn Grade 8 Math Session 8.2

  2. Focusing Questions • What are other strategies of teaching transformational geometry? • How can Geometer’s Sketchpad support working with transformations?

  3. Instruction

  4. Framing The Session • You have used the SmartBoard and virtual protractor to do transformations. Now, you will focus on using Geometer’s Sketchpad to accomplish this.

  5. Teaching • Open to page 290, PS A, in “IMPACT.” • Together we will follow the steps in the handout “Steps to Modify a Premade GSP Sketch”to complete the Problem Set.

  6. Guided Practice • Open Reflection.gsp. • Create instructions and questions for page 293 of “IMPACT Math” directly in Geometer’s Sketchpad using the text tool.

  7. Work Time

  8. Getting Started • Working in small groups, explore the following sketches and discuss how they relate to the problem sets indicated.

  9. Work Time How is the sketch related to the problem set? • Impact Math Chapter/Problem Set GSP Sketch • 5.1 PS C Reflect.gsp • 5.2 PS B Rotation symmetry.gsp • 5.2 PS E Rotate.gsp • 5.3 PS A Translate.gsp • 5.3 PS C ReflectIntersecting.gsp • 5.3 PS D Threeflect.gsp

  10. Work Time (cont’d) How is the sketch related to the problem set? • Impact Math Chapter/Problem Set GSP Sketch • Lab Investigation Glide reflect tiling.gsp, Triangle tiles.gsp, Twisted triangles.gsp, Tumbling blocks.gsp • 5.5 PS B Coordinate Reflect.gsp • 5.5 PS D Coordinate Translate.gsp • Whole chapter RooBooGoo.gsp

  11. Share

  12. Share • Let’s look at some of the questions and instructions you created.

  13. Share • How can Geometer’s Sketchpad help develop skills in transformational geometry?

  14. How does this session address different strategies of teaching transformational geometry? • Answers

  15. For more information • Office of Instructional Technology • oittc@schools.nyc.gov • www.nyc.gov/schools

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