1. Special Parallelograms

3. Rhombus Properties Activity 1. Give each student a rhombus (or have students draw their own using a straightedge) 2. Trace rhombus with labels and diagonals on a quarter piece of patty paper. 3. Place brad through the diagonal intersection. 4. Rotate Rhombus ABCD 180° so it maps onto itself. What do we notice??

4. Rhombus vs. Parallelogram What do we notice about the properties of a rhombus and of a parallelogram when it is rotated onto itself? They have the same properties! PARALLELOGRAMS RHOMBUS

5. What other properties do Rhombi have? BISECT PERPENDICULAR

7. Rectangle Properties Activity 1. Give each student a rectangle 2. Trace rectangle with labels and diagonals on a quarter piece of patty paper. 3. Place brad through the diagonal intersection. 4. Rotate Rectangle ABCD 180° so it maps onto itself. What do we notice??

8. Rectangle vs. Parallelogram vs. Rhombus What do we notice about the properties of a rectangle and of a parallelogram when it is rotated onto itself? They have the same properties! Do rectangles have the same properties as rhombi? No, because rhombi have to have 4 congruent sides. PARALLELOGRAMS RHOMBUSRECTANGLE

9. What other properties do Rectangles have? Using another rectangle, measure the lengths of the diagonals. The diagonals of a rectangle are CONGRUENT

11. Square Properties Activity 1. Give each student a square 2. Trace square with labels and diagonals on a quarter piece of patty paper. 3. Place brad through the diagonal intersection. 4. Rotate Square ABCD 180° so it maps onto itself. What do we notice??

12. Square vs. Parallelogram, Rhombus, and Rectangle YES

13. PARALLELOGRAMS RHOMBUS RECTANGLE SQUARE