Lesson 15

More Factors, More Problems

Lesson Purpose

The purpose of this lesson is for students to solve multiplication problems.

Lesson Narrative

Students write equations with a symbol for the unknown to represent multiplication problems and then solve the problems. As in the previous lesson, some problems are unknown factor problems which students do not relate to division until a future unit. Students put together what they have learned about drawings, diagrams, expressions, and equations to solve multiplication problems.

  • Engagement
  • MLR8

Learning Goals

Teacher Facing

  • Solve multiplication problems.

Student Facing

  • Let’s solve more multiplication problems. 

Required Preparation

CCSS Standards

Addressing

Building Towards

Lesson Timeline

Warm-up 10 min
Activity 1 15 min
Activity 2 20 min
Lesson Synthesis 10 min
Cool-down 5 min

Teacher Reflection Questions

As students worked in their small-groups today, whose ideas were heard, valued, and accepted? How can you adjust the group structure tomorrow to ensure each student’s ideas are a part of the collective learning?

Suggested Centers

  • Capture Squares (1–3), Stage 5: Multiply with 2, 5, and 10 (Addressing)
  • Five in a Row: Addition and Subtraction (1–2), Stage 8: Add within 1,000 with Composing (Supporting)

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