Targets
- 9A. Inscribe a regular polygon in a circle and break it into many congruent triangles to find its area
- 9B. Explain how to use the dissection method on regular polygons to generate an area formula for regular polygons
- 9C. Calculate the base area and volume of prisms, cylinders, and cones
- 9D. Explain that the volume of a pyramid is 1/3 the volume of a prism with the same base and same height and that the volume of a cone is 1/3 the volume of a cylinder with the same base and height
- 9E. Identify the shapes of 2D cross-sections of 3D objects
- 9F. Rotate a 2D figure and identify the 3D object that is formed
Essential Question
- How can two-dimensional figures be used to understand three-dimensional objects?
Class Notes
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Important Files
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Lesson Links for Target 9E and 9F
Directions for viewing each video:
- Go to www.Learnzillion.com
- Enter the Code given below for each lesson in any search field
- Watch the video and enjoy
- Lesson 1 - Visualize Cross Sections of Prism. Enter code: LZ3469
- Lesson 2 - Visualize Cross Sections of Pyramids. Enter code: LZ3386
- Lesson 3 - Visualize Cross Sections of Cylinders. Enter code: LZ3445
- Lesson 4 (viewed in class) - Visualize Cross Sections of Cones. Enter code: LZ3314
- Lesson 5 (viewed in class)- Predict 3D results of rotating simple figures. Enter code: LZ3488