**Learning objectives**

- Explore the chain rule for compositions of functions with various numbers of variables
- Treat the chain rule as substitution into differentials

**Before class**

- Read Hughes-Hallett sections 14.6.
- Ponder Hughes-Hallett problems: 14.6: 3, 9, 16, 19.

**In class**

**Daily Schedule**|**WeBWorK**|Assignments

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