• Unit Overview

  • Letter Home
  • Unit Preparation
  • Mathematics in this Unit
  • Assessment in this Unit
  • Key Assessment Opportunities Chart
• Daily Practice and Problems
• Home Practice

• Lesson 1

  • Developing the Lesson
  • Summarizing the Lesson
  • Homework and Practice
  • Extension
  • Answer Keys

• Lesson 2

  • Developing the Lesson
  • Summarizing the Lesson
  • Homework and Practice
  • Answer Keys

• Lesson 3

  • Developing the Lesson
  • Summarizing the Lesson
  • Homework and Practice
  • Answer Keys

• Lesson 4

  • Part 1: Demonstrate the Lab and Draw the Picture
  • Part 2: Collect and Graph the Data
  • Part 3: Analyzing the Data
  • Summarizing the Lesson
  • Homework and Practice
  • Extension
  • Answer Keys

• Lesson 5

  • Part 1: Make It Balance
  • Part 2: Make 99 Game
  • Summarizing the Lesson
  • Homework and Practice
  • Answer Keys

• Lesson 6

  • Part 1: Review Telling Time to the Nearest Five Minutes
  • Part 2: Elapsed Time
  • Summarizing the Lesson
  • Homework and Practice
  • Answer Keys

Lesson 4

Measuring Mass

Est. Class Sessions: 3

Daily Practice and Problems

X

Teacher Notes

X

28 + 15 = 43. Ask students to show how they modeled the problem with base-ten pieces and how they represented it with base-ten shorthand. Ask them to describe making the trade to show the fewest pieces.

N. Adding with Base-Ten Pieces

Solve this problem using base-ten pieces and base-ten shorthand. Then solve it another way.

28
+ 15

Another Way

Base-Ten Pieces