Intro to Functions

Overview: In this engaging animated lesson, the student will develop an understanding of functions and how to differentiate between a relation and a function. Each buyer will receive

1) Animated PowerPoint notes
2) Teacher notes
3) Student Guided Notes
4) Homework Question Sheet (Bloom’s Taxonomy)
5) Homework Answer Sheet
6) Homework Answer Key
7) An Engaging Lube Stop activity to reinforce learning

Performance Objectives: Within the context of this lesson, students will be asked to:

• Define a ‘function’.
• Compare a ‘relation’ with a ‘function’.
• Contrast a ‘relation’ with a ‘function’.
• Identify whether a set of ordered pairs is a ‘function’ or just a ‘relation’.
• Justify why a set of ordered pairs is OR is not a function.

Common Core Standards: 8th Grade

CCSS.Math.Content.8.F.A.1 Understand that a function is a rule that assigns to each input exactly one output. The graph of a function is the set of ordered pairs consisting of an input and the corresponding output.

CCSS.Math.Content.8.F.A.2 Compare properties of two functions each represented in a different way (algebraically, graphically, numerically in tables, or by verbal descriptions). For example, given a linear function represented by a table of values and a linear function represented by an algebraic expression, determine which function has the greater rate of change.

Essential Questions:

• What is a relation?
• What is a function?
• Can you compare and contrast a relation and a function?
• Can you describe a real life example of a function?
• Can you determine whether a relation is a function?
• Can you justify your decision when determining whether a relation is a function?