1. Interdisciplinary Lesson Plan (Algebra 1 and Biology)

2.  Area = length x width  The rate of change is the slope.  Slope = change in y / change in x  To graph an equation on the calculator, press the y= button on the top left.  The slope is 10 inches per second. So, the equation is y=10x

3.  To graph the rate of change, after entering y=10x, press the graph button

4.  Then press the graph button on the top left corner. This is what will be displayed.

5.  Question  How much surface area is covered after 4 seconds?  Let’s make a table: Time (seconds) Area covered 010 in 2 19 in 2 28 in 2 37 in 2 46 in 2 Add all the numbers in the table: 10 + 9 + 8 + 7 + 6 = 40 Answer: There will be 40 square inches covered after 4 seconds.