Quiz on parallelogram properties and special parallelograms. Homework is to watch these two videos:
https://www.youtube.com/watch?v=inlMrf2d-k4
https://www.youtube.com/watch?v=r2WfZ_42l1g
Note: In the first video, Mr. Khan says that rhombii and squares are also kites. This is true in some definitions, but to avoid confusion, we will define kites as non-parallelograms.
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Jigsaw group research on 4 topics:
- how to prove a quadrilateral is a parallelogram
- how to prove a parallelogram is a rectangle (and how to prove it's a rhombus)
- trapezoids, including isosceles trapezoids
- kites
Here are some notes for those absent. After that group work, we worked on a task ("Getting in shape") involving parallelograms, the coordinate plane, and actually proving that a given shape is a parallelogram.
Homework: Finish task if needed.
Thursday/Friday
Always/sometimes/never true activity with quadrilaterals. Then, handed out test study guide "Quadrilaterals Practice".