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This Area of a Parallelogram: Lesson instructional video also includes:
Sliding over a corner makes a rectangle. The resource demonstrates why the formula of the area of a parallelogram works. As part of a larger playlist on basic geometry, the video works examples dealing with parallelogram areas.
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CCSS:
Adaptable
Concepts
Additional Tags
Instructional Ideas
- Have class members cut the triangle off of a parallelogram and move it over to show it forms a rectangle
Classroom Considerations
- Requires individuals to know the formula to find the area of a rectangle
- Assumes the class can solve one-step linear equations
- This video is hosted on YouTube
Pros
- Shows the arithmetic and algebra used in the examples
- Links to more resources on finding areas of parallelograms
Cons
- Incorrectly states the perimeter formula for a parallelogram