Students will need to know how to interpret an integral and its bounds, as well as recognize that area below the x-axis is negative. Shapes are rectangles, triangles, trapezoids, semi-circles, and a combination of shapes. There are 12 integrals. This worksheet is appropriate for AP Calculus as well as non-AP Calculus. An answer key with worked-out solutions is included. For this activity, I cut up the half sheets and post them randomly around my room, allowing students to walk around and work i