1. Key Question How large are American Chestnut trees? How large are American Chestnut trees?

2. Objective Students will determine the height and circumference of indigenous trees using a variety of methods. Students will determine the height and circumference of indigenous trees using a variety of methods.

3. Warm-up 1. Where could the American chestnut tree be found? 1. Where could the American chestnut tree be found? 2. Why do we not have American chestnut trees today? 2. Why do we not have American chestnut trees today? Review: Share what you know about the American chestnut with your neighbor. Review: Share what you know about the American chestnut with your neighbor.

4. Agenda Discuss Warm-Up and review yesterday’s lesson. Discuss Warm-Up and review yesterday’s lesson. Background: Circumference of a circle Background: Circumference of a circle Size It Up activity Size It Up activity

5. Size It Up Today we will find the height and circumference of trees. Today we will find the height and circumference of trees. What is circumference? Click the link below to find out! Read about circumference and answer practice problems 1-4 on your worksheet. http://www.mathwarehouse.com/geometry/circ le/circumference-of-circle.php What is circumference? Click the link below to find out! Read about circumference and answer practice problems 1-4 on your worksheet. http://www.mathwarehouse.com/geometry/circ le/circumference-of-circle.php http://www.mathwarehouse.com/geometry/circ le/circumference-of-circle.php http://www.mathwarehouse.com/geometry/circ le/circumference-of-circle.php

6. Size It Up Part 2 Review the directions on the “Size It Up” worksheet to discover various ways to measure the height and circumference of trees on our school property. Using your string and meter stick practice the techniques we learned. Follow the directions on the Size It Up worksheet.

7. Conclusion Try these Charlie the Chestnut math problems! Try these Charlie the Chestnut math problems! Problems! Problems! Problems!