Calculus Clever Catch Ball is a fun & engaging way for students to learn about Calculus. As students toss and catch the ball, they answer the question under their left thumb. A fun way to practice and learn! Limits, derivatives and integrals are included in the questions on this 24? Clever Catch?. (No Latex!) Students in grades 9-12 will find this a nice classroom alternative for review. A teacher?s guide with answers is provided.