Perimeter is the total length around the object. So imagine the grid lines are equal to one step. And imagine the outside edges of the figure are tight ropes. You want to see how many steps it will take you to get all the way around the edge. The number of steps would be the perimeter.
Area is the amount of space in side the figure.
So imagine the grid lines mark off floor tiles like the ones we have here at school. Now floor tiles are one-foot squares. So to find the amount of space in the object we just need to count the floor tiles. Once we have calculated the area and perimeter we will put our answers in the textfields and click the check answer button. If we got it right we will move on to harder shapes by using the adjust max size scroll bar.