What makes a function a function? Learn the criteria for a relation defined as a function both numerically and graphically. Once young mathematicians define a function, they use function notation to evaluate it. 

Concepts

function notation, functions, relations, vertical line test, domain, range

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Additional Tags

math

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Instructional Ideas

• Have your classes record important vocabulary on graphic organizers such as waffles
• Supplement with contextual scenarios that can be defined by functions

Classroom Considerations

• Practice problems do not directly correlate to the lesson examples
• The lesson is the 17th in a 20-part series

Pros

• Clarifies vocabulary throughout the resource

Cons

• Does not include an answer key to the practice problem set

Common Core

HSF-IF.A.1