Stack Up

Est. Class Sessions: 2

Mathematical Standards

5.NBT.A: Understand the place value system. (5.NBT.A.1, 5.NBT.A.2)

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.
MP6.: Attend to precision.

Stack Up is an extended-response problem that uses large numbers with ending zeros. Students work in groups to find the number of pennies needed to build a stack tall enough to reach the moon. Students use Math Practice Expectations 2, 3, 5, and 6 to review, revise, and evaluate their written work.

Content in this Lesson

Reading and writing large numbers [E1].
Rounding large numbers [E3].
Multiplying numbers that are multiples of ten represented as powers of ten [E7].
Estimating products [E8].
Collecting and using data to solve problems.
Solving extended-response problems and communicating solution strategies [MPE2].
Measuring length in centimeters.
Solving problems involving multiplication and division [E9].
Checking the reasonableness of a solution strategy [MPE3].
Using labels to show what numbers mean [MPE6].

Daily Practice and Problems S–V

S. A Juicy Problem

T. Exponents

U. Estimating Products

V. Many Centimeters

Materials for Students

		Daily Practice and Problems	Lesson	Homework	Assessment
Student Books	Student Guide		Stack Up Page 156		Math Practices Reference
Teacher Resources	Teacher Guide - digital	DPP Item S DPP Item T DPP Item U DPP Item V	Stack Up Work	Home Practice Parts 6–7	Stack Up Work Check-In: Question 3

Supplies for Student Groups

20 pennies
meterstick, optional

Supplies for Students

centimeter ruler
calculator

Materials for the Teacher

Display of Mary's Work (Teacher Guide)
Display of Maria's Work (Teacher Guide)
2 Displays of Stack Up Work Check-In: Question 3 Feedback Box Student-to-Student (Teacher Guide)
Unit 3 Assessment Record

Assessment in this Lesson

Assessment	Math Practices Expectation Assessed
Stack Up Work Check-In: Question 3 with Feedback Boxes Teacher Guide - digital	MPE2. Find a strategy. I choose good tools and an efficient strategy for solving the problem. 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 that someone else can understand my thinking. MPE6. Use labels. I use labels to show what numbers mean.

Assessment

Math Practices Expectation Assessed

Stack Up Work
Check-In: Question 3 with Feedback Boxes
Teacher Guide - digital

MPE2.: Find a strategy. I choose good tools and an efficient strategy for solving the problem.
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 that someone else can understand my thinking.
MPE6.: Use labels. I use labels to show what numbers mean.

Unit 3

Unit Overview

Daily Practice and Problems

Lesson 1

Lesson 2

Lesson 3

Lesson 4

Lesson 5

Lesson 6