Reverse the wrapping to get to the gift. Using the idea of unwrapping a gift, the lesson introduces the concept of inverses. Pupils first determine the order needed to evaluate a function at a point, then use the reverse to find the inverse of the function. They graph the function and the inverse and compare the domains and ranges.

Concepts

inverse, inverse operations, inverse functions, graphing functions

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Additional Tags

math

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Instructional Ideas

• Develop a list of operations and their associated inverse operations

Classroom Considerations

• Individuals need access to Desmos or another graphing utility
• The class should understand the terminology used with functions

Pros

• Uses multiple representations to the inverse function
• Includes a link as an intervention for learners struggling with the order of operations

Cons

• None

Common Core

HSF-BF.B.4.a HSF-BF.B.4.c MP5 MP7