Chapter 3  DerivativesIn this chapter, we build off of what was covered in Chapter 2 in regards to slopes of tangent lines. "The study of rates of change of functions is called differential calculus, which is called the derivative. The derivative was the 17thcentury breakthrough that enabled mathematicians to unlock the secrets of planetary motion and gravitational attraction  of objection changing position over time. We will learn many used for derivatives in Chapter 5, but first, in the next two chapters, we will focus on what derivatives are and how they work."
(Finney, Ross L., Franklin D. Demana, Bert K. Waits, and Daniel Kennedy. "Chapter 3." Calculus: Graphical, Numerical, Algebraic. 5th ed. N.p.: Pearson Education, n.d. 101. Print. AP Edition.) 
Chapter 3 reallife math connection.

Lesson 3.1  Derivative of a Function
This lesson will teach students to compute the derivative of a function at x = a using both forms of the limit definition and explain its relationship to slope. Lesson 3.2  Differentiability
This lesson will teach students to analyze and discuss the differentiability of functions. Lesson 3.3  Rules for Differentiation
This lesson will teach students to apply the rules for differentiation. 
Lesson 3.4  Velocity and Other Rates of Change
This lesson will teach students to interpret the derivative as representing velocity and other rates of change. Lesson 3.5  Derivatives of Trigonometric Functions
This lesson will teach students to determine the derivatives of trigonometric functions. 