Oct+5+Mon


 * Topic:** Calculating diameter from Circumference

1. You will be able to measure the circumference of 10 objects to the nearest 1/16 of an inch. 2. You will be able to record data in a data table. 3. You will be able to convert fractions to decimals using a calculator. 4. You will be able to write the formula for circumference, and diameter. 5. You will be able to substitute a portion of the diameter equation into the formula for Circumference and rewrite the equation for Circumference using the diameter. 6. You will be able to rearrange the formula for circumference to isolate the diameter. 7. You will be able to solve for the diameter using the circumference of a circle.
 * Goals / Objective:**

Because we cannot cut down the trees in our plots and measure the diameter, we will need to calculate the diameter from the measured circumference. Later we will use a handy tool called a Biltmore stick. Todays lesson will prepare you for calculating the diameter of the trees in your plot using the circumference measured at chest height.
 * Connection to forestry plot lab**:

Draw a circle in your notebook. Using your picture and arrows label the circumference.
 * Bell Ringer:**

You will be measuring the circumference of 10 objects in the classroom. Objects 1-6 are labeled. You may choose an additional 4 objects. Review the inches side of the measuring tape. Notice they are marked off- there are 16 spaces between the inch marks- signifying measure to the 1/16. Create the following data table in your notebook:
 * Class discussion / Prelab**


 * Object # || Object ||  Circumference to the nearest 1/16 of an inch ||
 * 1 || Coffee Can ||  ||
 * 2 || rubber cement can ||  ||
 * 3 || ice tea can ||  ||
 * 4 || baby beaker ||  ||
 * 5 || styrofoam cup ||  ||
 * 6 || plastic beaker ||  ||
 * 7 ||  ||   ||
 * 8 ||  ||   ||
 * 9 ||  ||   ||
 * 10 ||  ||   ||