Lawrence Hall of Science
The Math Page: An Approach to Calculus: The Chain Rule
Here is a site that clearly and thoroughly explains the chain rule for derivatives of composite functions. There are example problems solved, problems for the student to attempt, and answers to the student problems. Point this site out...
Mathematics Archives
Math Archives: Composition of Functions
Site offers a detailed explanation of the compostion of functions
Math Medics
S.o.s. Math: The Chain Rule
Finding derivatives by using the chain rule is explained through examples in this tutorial.
Other
Karl's Calculus Tutor: The Chain Rule
This site provides a detailed overview of the chain rule. Content includes several examples, applications, and exercises.