Calculus I is designed to equip science, engineering, and mathematics students with differential calculus knowledge and skills necessary for application in their diverse fields, and also a prerequisite to integration calculus, numerical methods, probability among other higher level mathematics course. Calculus I deals with differentiation of single real valued functions. It focuses on the limits of functions and continuity of functions. Calculus I introduces the basic techniques of differentiation and key theorems in differential calculus. The course also introduce the learner to the application of differentiation in rates of changes, related changes, kinematics, and optimization.