1. Area and Perimeter 3 rd Grade Cabarrus County

2. Agenda Explore mathematical tasks Discuss tasks and mathematical concepts Share resources Work on planning a unit

3. Building Gardens Task Use tiles and graph paper to work on the task

4. Approaches?

5. Solutions?

6. Is Mia correct? Mia said Figure Q and Figure R have equal areas and equal perimeters. She supported her thinking by saying that any two figures made of an equal number of unit squares always have equal areas and equal perimeters. Is Mia correct? In the space below, use pictures, numbers, and words to explain why or why not.

7. SBAC Task- Is Mia correct? What concepts do students need to understand in order to be successful? What mathematical practices do students need to apply in this task?

8. Concepts embedded in area and perimeter… Let’s Brainstorm.....

9. Rectilinear figures 4 ? 4 ? 2 13 What is the perimeter? What is the area?

10. Resource Sharing NCDPI Unit on Area and Perimeter http://maccss.ncdpi.wikispaces.net/Third +Grade Unit on Tiling and Fencing- password- cms http://coedpages.uncc.edu/abpolly/elem ath/units/4th-tiling.pdf Partners Resources CD in schools Others?

11. Planning format Task Discussion Follow-up task(s) Engage (opening) Explore (task) Explain (discussion) Elaborate (follow-up tasks)

12. Questions?