Twelfth graders investigate derivatives of logarithms.  In this calculus instructional activity, 12th graders explore the procedure for taking the derivative of logarithms to any base. 

Learners listen as the teacher develops the derivative formula for if y=e^x, They find dy/dx by showing two proofs. Students determine the derivative of y=e^tan3x, and if y=e^2x they determine the hundredth derivative. Learners listen as...