• 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

  • Part 1: Where Are the Teens?
  • Part 2: Saying 13 in Japan
  • Summarizing the Lesson
  • Homework and Practice
  • Answer Keys

• Lesson 2

  • Part 1: Group Beans to Count
  • Part 2: Compare Bean Counts
  • Summarizing the Lesson
  • Homework and Practice
  • Answer Keys

• Lesson 3

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

• Lesson 4

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

• Lesson 5

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

• Lesson 6

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

• Lesson 7

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

• Lesson 8

  • Part 1: Launching the Lab and Drawing a Picture
  • Part 2: Collecting the Data
  • Part 3: Graphing the Data
  • Summarizing the Lesson
  • Homework and Practice
  • Answer Keys

Lesson 4

Spin for 50

Est. Class Sessions: 1–2

Daily Practice and Problems

X

Teacher Notes

X

Discuss the strategies and tools students use.

1. 25 letters
2. Elizabeth
3. May
4. 6 letters; 9 − 3 = 6

I compared 9 to 3. If I cover 3 of the 9 there are 6 letters.

I. Number of Letters

Joseph made this table for the numbers of letters in the names of his family members. You may use cubes, the number line, or ten frames to solve the problems.

1. What is the total number of letters Joseph recorded for his family?
2. Which name has the most letters?
3. Which name has the fewest letters?
4. How many more letters are in the longest name than in the shortest name? Show or tell how you know.