Lesson 7
Find Factors and Multiples
Lesson Purpose
The purpose of this lesson is for students to find factors and multiples of a given whole number from 1–100.
Lesson Narrative
In previous lessons, students learned about factor pairs, multiples, and prime and composite numbers.
The purpose of this lesson is for students to use the language of factors and multiples to describe numbers within 100. Students look for all factors of numbers and decide whether a given number is prime or composite. Students are encouraged to find patterns in composite numbers which help to identify a factor. For example, if the last digit of a number is 0 then 2, 5, and 10 are all factors of that number.
 Engagement
 MLR8
Learning Goals
Teacher Facing
 Determine whether a number from 1–100 is a multiple of another number.
 Find all factor pairs of a given whole number from 1–100.
Student Facing
 Let’s find factors and multiples of whole numbers from 1–100.
Required Materials
Materials to Gather
Materials to Copy
 Find the Number Stage 2 Directions and Gameboard
Required Preparation
Lesson Timeline
Warmup  10 min 
Activity 1  15 min 
Activity 2  20 min 
Lesson Synthesis  10 min 
Cooldown  5 min 
Teacher Reflection Questions
As you finish up this section, reflect on the norms and activities that have supported each student in learning math. How have you seen each student grow as a young mathematician throughout this work? How have you seen yourself grow as a teacher?
Suggested Centers
 Five in a Row: Multiplication (3–5), Stage 2: Factors 1–9 (Addressing)
 Secret Fraction (3), Stage 1: Building NonUnit Fractions (Supporting)
Print Formatted Materials
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Additional Resources
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