## Grade 4 Mathematics Module 3, Topic C: Multiplication of up to Four Digits by Single-Digit Numbers

Classroom Resource Information

Title:

Grade 4 Mathematics Module 3, Topic C: Multiplication of up to Four Digits by Single-Digit Numbers

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Content Source:

EngageNY
Type: Lesson/Unit Plan

Overview:

Building on their work in Module 3, Topic B, students begin in Topic C decomposing numbers into base ten units in order to find products of single-digit by multi-digit numbers. Students practice multiplying by using models before being introduced to the standard algorithm. Throughout the topic, students practice multiplication in the context of word problems, including multiplicative comparison problems. In Lessons 7 and 8, students use place value disks to represent the multiplication of two-, three-, and four-digit numbers by a one-digit whole number. Lessons 9 and 10 move students to the abstract level as they multiply three- and four-digit numbers by one-digit numbers using the standard algorithm. Finally, in Lesson 11, partial products, the standard algorithm, and the area model are compared and connected via the distributive property (4.NBT.5).

Content Standard(s):
 Mathematics MA2019 (2019) Grade: 4 2. Solve word problems involving multiplicative comparison using drawings and write equations to represent the problem, using a symbol for the unknown number. Alabama Alternate Achievement Standards AAS Standard: M.AAS.4.1 Solve one-step word problems involving real-life situations using the four operations within 100 without regrouping and select the appropriate method of computation when problem solving. Mathematics MA2019 (2019) Grade: 4 11. Find the product of two factors (up to four digits by a one-digit number and two two-digit numbers), using strategies based on place value and the properties of operations. a. Illustrate and explain the product of two factors using equations, rectangular arrays, and area models. Alabama Alternate Achievement Standards AAS Standard: M.AAS.4.11 Add and subtract one and two-digit numbers up to 49 with regrouping using concrete manipulatives and visual models.
Tags: array, divide, multiplicative comparison, multiply, operations, place value, word problems
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