1. Classifying Polygons Investigating the 9/11 Memorial Fountains

2. Common Core Standards
MACC.912.G-GPE.2.4: Use coordinates to prove simple geometric theorems algebraically
MACC.912.G-GPE.2.5: Prove the slope criteria for parallel and perpendicular lines and use them to solve problems
MACC.912.G-GPE.2.7: Use coordinates to compute perimeters of polygons and areas of triangles and rectangles

3. APK
On the piece of paper provided, complete the two tasks to review slope and distance formula.

4. 9/11 Memorial Fountains
Have you seen the new 9/11 Memorial Fountains yet?

5. Let’s Classify
Quadrilaterals Discovery Activity
See handout provided

6. 9/11 Memorial Fountains
What quadrilateral do you think the fountains represent and justify your answer?

7. Now Test Your Conjecture

8. Assessment
Complete the 9/11 Memorial Fountains Assessment