Lesson 6

Function Machines

Est. Class Sessions: 2–3
X

Mathematical Standards

4.AO.A
Use the four operations with whole numbers to solve problems. (4.OA.A.1, 4.OA.A.2)

Standards for Mathematical Practice

MP1.
Make sense of problems and persevere in solving them.
MP2.
Reason quantitatively.
MP6.
Attend to precision.
MP8.
Look for and express regularity in repeated reasoning.

Students are introduced to functions through the activity Guess My Rule. Students use function machines to generate an “output” number for every “input” number. They record their findings in data tables and explore different ways to describe the patterns or rules generated by function machines.

Content in this Lesson

  • Making predictions and generalizations using tables and graphs [E8].
  • Identifying and extending multiplicative patterns [E10].
  • Representing patterns and functions using words, tables, and symbols [E11].
X

Materials for Students

Daily Practice and Problems Lesson Homework Assessment

Student Books

 Student Guide
Student Activity Book

Teacher Resources

 Teacher Guide - digital

Supplies for Students

calculator

Materials for the Teacher

Display of the Two-Column Data Table Master (Teacher Guide)
Unit 5 Assessment Record
Math Facts Class Record

Assessment in this Lesson

Assessment Expectation Assessed

Function Tables
Homework section
Questions 1–5
Student Activity Book
Pages 173–174
E10.
Identify and extend multiplicative patterns.
E11.
Represent patterns and functions using words, tables, and symbols.

DPP Item Y
Multiplication Quiz: Last Six Facts
Teacher Guide - digital
E12.
Demonstrate fluency with the last six multiplication facts (4 ÷ 6, 4 ÷ 7, 4 ÷ 8, 6 ÷ 7, 6 ÷ 8, 7 ÷ 8).

Vocabulary in this Lesson