Introduction to Functions

Grade 1245 min

Learning Objective

I can evaluate a function for a given input and interpret the output in context.

Lesson Flow

Watch Video

8 min

What is a function? | Functions and their graphs | Algebra II | Khan Academy

Khan Academy

Practice

14 min

7 questions • Short answer

Exit Ticket

5 min

Evaluate the function p(x) = x² - 3 when x = 5. What does the output represent in context? Evaluate the function q(y) = 2y + 4 when y = -2. What does the output represent in context?

Teacher Guide

Get the complete package:

  • Answer keys for all questions
  • Differentiation strategies
  • Extension activities
  • Printable student handouts