Develop an understanding of the area and perimeter of rectangles.
What is the area of the rectangle that has the length of 7 inches and a width of 12 inches?
84 [math]^{inches^2}[/math]
Why do we square the units and how do you know we do?
Why do we add the lengths instead of multiplying?
Why can't we count the squares around the shape to find perimeter? For example: A rectangle has a base of 6 and a height of 8. Why can the perimeter not be 24?
What shape has the largest area? Why is that shape the largest? Give an example using the applet? Give the dimensions used.