Workshop: Multiplication Strategies

Est. Class Sessions: 3

Mathematical Standards

5.NBT.B: Perform operations with multidigit whole numbers and with decimals to hundredths. (5.NBT.B.5, 5.NBT.B.6)
5.MD.C: Geometric measurement: understand concepts of volume. (5.MD.C.3, 5.MD.C.4, 5.MD.C.5)

Standards for Mathematical Practice

MP1.: Make sense of problems and persevere in solving them.
MP2.: Reason quantitatively.
MP3.: Construct viable arguments and critique the reasoning of others.
MP4.: Model with mathematics.
MP5.: Use appropriate tools strategically.
MP6.: Attend to precision.
MP7.: Look for and make use of structure.

Students practice a variety of strategies including estimation for multiplication with multidigit numbers. They apply these strategies to multistep problems, including problems finding volume. Students play the Multiplication Digits Game to practice methods and place value concepts in multidigit multiplication.

Content in this Lesson

Choosing and using mental math, estimation, and paper-and-pencil methods (expanded form, rectangle model, all-partials, compact) to find products [E4, 6].
Estimating products [E5].
Showing connections between models and strategies for multiplication [E2].
Demonstrating understanding of the place value concepts and mathematical properties involved in operations with multidigit numbers [E1].
Using multiplication and division strategies to find the area of rectangles, shapes based on rectangles, and the volume of boxes [E8, 9].
Solving multistep problems using addition, subtraction, multiplication, and division [E7].
Knowing the problem [MPE1].
Finding a strategy [MPE2].
Checking for reasonableness [MPE3].
Communicating solution strategies [MPE5].
Using labels to show what numbers mean [MPE6].

Daily Practice and Problems CC–HH

CC. Subtraction Practice

DD. Pieces and Parts

EE. Use Your Head with Addition

FF. Fractions Between 0 and 1

GG. Use Your Head with Addition

HH. What's the Area

Materials for Students

		Daily Practice and Problems	Lesson	Homework	Assessment
Student Books	Student Guide	Subtraction Strategies Menu Reference	Workshop: Multiplication Strategies Pages 200–208 Multidigit Multiplication Strategies Menu Reference	Workshop: Multiplication Strategies Pages 200–208 Multidigit Multiplication Strategies Menu Reference	Workshop: Multiplication Strategies Self-Check: Q# 4 and Q# 14 Pages 201, 204 and Check-In: Q# 23 Page 208
Student Books	Student Activity Book		Practice Multiplication Strategies Pages 189–194	Practice Multiplication Strategies Pages 189–194	Practice Multiplication Strategies Self-Check Page 189 and Check-In: Q# 10 Pages 193–194
Teacher Resources	Teacher Guide - digital	DPP Item CC DPP Item DD DPP Item EE DPP Item FF DPP Item GG DPP Item HH	Multiplication Digits Game optional Digit Cards 0–9 optional	Home Practice Parts 7–8 Multiplication Digits Game optional Digit Cards 0–9 optional	Workshop: Multiplication Strategies Check-In: Q# 23 Feedback Box

Supplies for Students

calculator

Supplies for Student Groups

Digit Cards 0–9 from Lessons 1 and 4

Materials for the Teacher

Display of Multiplication Digits Game (Teacher Guide), optional
Display of Check-In: Question 10 from Practice Multiplication Strategies (Student Activity Book) Page 193
Unit 4 Assessment Record
Unit 4 Individual Assessment Record

Assessment in this Lesson

Assessment	Expectation Assessed	Math Practices Expectation Assessed
Practice Multiplication Strategies Self-Check Student Activity Book Page 189	E4. Multiply multidigit numbers using mental math and paper-and-pencil methods (expanded form, rectangle model, all-partials, compact). E5. Estimate sums, differences, and products.
Practice Multiplication Strategies Check-In: Question 10 with Feedback Box Student Activity Book Pages 193–194	E2. Show connections between models and strategies for multiplication (e.g., demonstrate partial products using a rectangle model for multiplication). E4. Multiply multidigit numbers using mental math and paper-and-pencil methods (expanded form, rectangle model, all-partials, compact). E5. Estimate sums, differences, and products.	MPE3. Check for reasonableness. I look back at my solution to see if my answer makes sense. If it does not, I try again. MPE5. Show my work. I show or tell how I arrived at my answer so someone else can understand my thinking.
Workshop: Multiplication Strategies Self-Check: Question 4 Student Guide Page 201	E4. Multiply multidigit numbers using mental math and paper-and-pencil methods (expanded form, rectangle model, all-partials, compact). E6. Choose appropriately from among mental math, estimation, and paper-and-pencil methods to find sums, differences, and products. E7. Solve multistep problems using addition, subtraction, multiplication, and division.
Workshop: Multiplication Strategies Self-Check: Question 14 Student Guide Page 204	E7. Solve multistep problems using addition, subtraction, multiplication, and division. E9. Use multiplication and division strategies to find the volume of boxes.
Workshop: Multiplication Strategies Check-In: Question 23 Student Guide Page 208 and corresponding Feedback Box Teacher Guide - digital	E6. Choose appropriately from among mental math, estimation, and paper-and-pencil methods to find sums, differences, and products. E7. Solve multistep problems using addition, subtraction, multiplication, and division. E8. Use multiplication and division strategies to find the area of rectangles or shapes based on rectangles. E9. Use multiplication and division strategies to find the volume of boxes.	MPE1. Know the Problem. I read the problem carefully. I know the questions to answer and what information is important. MPE2. Find a strategy. I choose good tools and an efficient strategy for solving the problem.