Today, we continued our area and volume unit in non AP Calculus. We did these area between curves “puzzles”. I'm to sure why I think of them as puzzles, or why I called them puzzles, but it worked. Students just had to set up the Integrals that would find the areas of these weirdly shaped objects. When they were done, I would give them the next one that had the answer to the previous on the back. I think giving them the problems one at a time and delaying the gratification of looking at the answer made what could have been a boring worksheet feel much different (maybe a little more like solving puzzles!).