Introduce the concept of factors and multiples with our Factors and Multiples Lesson Plan. This interactive lesson defines factor and multiple and enables students to identify the factors and multiples of whole numbers. The fun activity using playing cards solidifies the concept of prime and composite numbers, as well as leverages peer learning in pairs.
Sample Classroom Procedure / Teacher Instruction
- Bring two students to the front of the room. Next, bring 4 students to the front of the room, keeping them apart from the first two. Next bring 6, then 8. (2, 4, 6, 8)
- Ask student to look at each group and to tell something about the groups.
- Allow for responses and discussion. (Responses may include number of girls, boys, et., but many will recognize the increase by two each time.)
- Lead the responses to 2, 4, 6, 8 and ask how many students would be needed in the next group. (10)
- Lead the discussion to multiples of numbers.
- Next ask the students how the large group (8) can be separated. (Two 4s, Four 2s)
- Allow for responses and discussion. Lead the discussion to factors.
- List the multiples of 2 for display and the factors of 8 for display. Ask students to recognize the differences. (Factors are smaller than 8, multiples are larger than 2.)
- Distribute the Factors and Multiples content pages. Read and review the information with the students. Use additional examples to enhance student understanding and to help students distinguish the differences between factors and multiples.
- Ask student to give other examples of prime numbers.
- Distribute the Activity pages (Copy extra). Pair students. Review the instructions and the example with the students. (You may allow students to use a calculator.)
- Distribute the playing cards. Allow students ample time for completion and practice with their partners.
- Ask each pair of students to demonstrate a turn of the cards. Review the Prime Numbers the students circled.
- Distribute the Practice page. Check and review student responses. Use additional resources for needed practice, especially the Interactives if access to the Internet is available.
- Distribute the Homework page. The next day, check and review the students’ responses.
- In closing, ask students to count aloud the multiples of 2, 3, 4, and 5. Ask students to list factors of random numbers. Randomly choose students.
Common Core State Standards: CCSS.Math.Content.3.OA.B.6 CCSS.Math.Content.4.OA.B.4
Class Sessions (45 minutes): At least 2 class sessions
Want more math resources? Check out our other Math Lesson Plans!