Lesson 6
Multiply Twodigit Numbers and Onedigit Numbers
Lesson Purpose
Lesson Narrative
In the previous lesson, students solved twodigit multiplication problems in a way that made sense to them. They discussed decomposing factors and considered different representations of their strategy. In this lesson, students extend these ideas to find the value of products beyond 100, focusing on representations and strategies based on place value and the properties of operations, which are familiar from grade 3.
Students analyze baseten diagrams and diagrams that involve rectangles, some of which are partitioned by place value. They explain how the diagrams represent multiplication and make connections between them, deepening their understanding of place value and properties of operations. At the end of the lesson, students consider a rectangular diagram that will be used through the rest of the section.
 Engagement
 MLR1
Learning Goals
Teacher Facing
 Multiply twodigit and onedigit whole numbers using place value understanding and properties of operations.
Student Facing
 Let’s multiply twodigit and onedigit numbers.
Required Preparation
CCSS Standards
Addressing
Lesson Timeline
Warmup  10 min 
Activity 1  20 min 
Activity 2  15 min 
Lesson Synthesis  10 min 
Cooldown  5 min 
Teacher Reflection Questions
Suggested Centers
 Can You Draw It? (1–5), Stage 4: Area and Perimeter (Supporting)
 Five in a Row: Multiplication (3–5), Stage 2: Factors 1–9 (Supporting)
Print Formatted Materials
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Additional Resources
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