1. INTRODUCING GROUP PROJECT

3. Group Project

4. Tom, Sandy, and Bob Method 1. Height of swing from ground at rest (distance from x-axis to minimum peak) 2. Height of swing from ground where swing reaches its highest point (distance from x- axis to maximum peak) 3. Time for one complete cycle (period), which is the swing moving from center- forward to center-back and back to center. EXPLANATIONS - (see next slide) x1234 y344498898 Equations Question Calculations Solution

5. REQUIRED: DATA TABLE GRAPH EQUATION (both in Sine and Cosine) CALCULATIONS (apply your equation to some question - "What is the height of the swing after 3.5 minutes?") Explanation of the concepts in nature causing the real- life event (for example: an Earth-Space science concept - "Gravity from the moon pulls on the ocean, creating high tides and low tides. It occurs in a predictable cycle that is dependent on the location of the moon and the Earth's rotation. The tide is high on the side of the Earth that is closest to the moon. It is low tide on the side of the Earth facing away from the sun." ) Explanation of how the sinusoidal function is applied (back to our example - "A Cosine function can be used to represent how far inland the waterline is during high tide and low tide. This will be the y-coordinate. Time is represented by x-coordinate. The complete wave represents a full cycle from high tide to low tide and back." –Note that variables are clearly stated.

6. REQUIRED (continued) Explanation of how data was retrieved –show where you got your measurements ("Our data is a tide chart of the Kitty Hawk Bay in the U.S.A. Datat was retrieved from http://www.twiddy.com/tide-charts.aspx") –If you took your own measurements you must describe your method (for example: with the swing-set concept, it would look like: Method 1. Height of swing from ground at rest (distance from x- axis to minimum peak) 2. Height of swing from ground where swing reaches its highest point (distance from x-axis to maximum peak) 3. Horizontal Distance on ground from swing at rest to the place where swing reaches its highest point 4. Time for one complete one complete cycle (period), which is the swing moving from center-forward to center- back and back to center.

7. SPECIAL NOTES: You will work in the groups you are currently in You will be graded on originality, accuracy, and by using the most efficient method to find your solution

8. RUBRIC

9. WE WILL START PRESENTATIONS ON TUESDAY (APRIL 22) ANY QUESTIONS?