Lesson Plan

Division: Solving for Unknown Factors

Help your class conquer division with this lesson that has them find the unknown factor using multiplication!
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Need extra help for EL students? Try the Number Relationships in Division pre-lesson.
View aligned standards
Need extra help for EL students? Try the Number Relationships in Division pre-lesson.

Learning Objectives

Students will be able to solve for the unknown factors in division problems.

The adjustment to the whole group lesson is a modification to differentiate for children who are English learners.
EL adjustments


(5 minutes)
  • Invite students to bring their math journals and a pencil to the class meeting area.
  • Have students place their supplies on the floor next to them.
  • Tell students that today they're going to learn strategies for solving division problems.
  • Let the students know that to solve for the unknown factor in a division problem, they must have a strong grasp of some multiplication strategies and multiplication facts.
  • On the board write “Multiplication Strategies.”
  • Ask students to share with the class some multiplication strategies they already know. As the students share, list the strategies on the board under the term “Multiplication Strategies.”
  • Some strategies students may share are repeated additions, arrays, skip counting, or grouping.


  • Have students share their strategies with an EL with the same home language (L1) or a supportive non-EL.
  • Allow students to discuss the strategies and create visuals to support their explanations.


  • Provide student-friendly definitions and accompanying images for important terminology, such as: multiplication, strategy, unknown factor, division.
  • Ask students to talk to a partner about multiplication strategies before sharing with the whole group.