• 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: Measuring with Palms
  • Part 2: Measuring with Footprints
  • Summarizing the Lesson
  • Homework and Practice
  • Answer Keys

• Lesson 2

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

• Lesson 3

  • Part 1: Measuring with Feet and Yards
  • Part 2: Measuring with Meters and Centimeters
  • Summarizing the Lesson
  • Homework and Practice
  • Answer Keys

• Lesson 4

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

• Lesson 5

  • Part 1: Measure Palm Variation for Our Class
  • Part 2: Measure Palm Variation for Central School
  • Summarizing the Lesson
  • Homework and Practice
  • Extension
  • Answer Keys

• Lesson 6

  • Before the Lesson
  • Part 1: Read Mine is the Best: The Challenge
  • Part 2: Prepare for the Lab: Keep Things Fair
  • Part 3: Collect the Data
  • Part 4: Graphing the Data
  • Part 5: Explore and Use Data
  • Summarizing the Lesson
  • Homework and Practice
  • Answer Keys

Lesson 3

Measure with Standard Units: Long Lengths

Est. Class Sessions: 1–2

Daily Practice and Problems

X

Teacher Notes

X

1. crazy; 23 centimeters is about the width of a piece of paper.
2. could be; 70 centimeters is about the length of two rulers. Each is 30 cm so two is 60 cm. That is reasonable.
3. Answers will vary.

G. Measurement Sense

Decide if each statement "could be" or is "crazy." Circle one. Use a centimeter ruler. Explain your choice to your neighbor.

1. Romesh measured his desk and it measured 23 centimeters.
   
               could be            crazy
2. Carla measured her desk. It measured 70 centimeters.
   
               could be            crazy
3. Work with your neighbor to measure the length of your desk in centimeters.
   
   Length ________________________