Lesson 9
The Birds
Lesson Purpose
The purpose of this lesson is for students to use wholenumber multiplication to solve problems.
Lesson Narrative
In previous lessons, students learned to use the standard algorithm to multiply multidigit numbers. In this lesson, they solve problems that involve multiplication. Students are not asked to use a particular algorithm when they solve these problems. Some of the numbers in the problems are large and cumbersome and lend themselves well to using the standard algorithm for multiplication. Other products have factors of 10 and other smaller factors and these lend themselves well to mental calculations or use of the associative and commutative properties of multiplication. Use this lesson as an opportunity to observe the strategies your students are applying.
 Action and Expression
 MLR1
Learning Goals
Teacher Facing
 Solve problems that involve the multiplication of multidigit numbers.
Student Facing
 Let’s solve multiplication problems.
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
If you were to teach this lesson over again, what activity would you redo? How would your proposed changes support student learning?
Suggested Centers
 Number Puzzles: Multiplication and Division (4–5), Stage 2: Multidigit Factors (Addressing)
Print Formatted Materials
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Additional Resources
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