In this unit, students begin using rulers to determine lengths. They learn about two-and three-dimensional shapes. They use their measurement skills to collect and organize data as they display measurements on line plots. Students analyze measurements given in different units to learn the relationship between the size of a measuring unit and the number of units.

Unit 1 • Unit 2 • Unit 3 • Unit 4
Unit 5 • Unit 6 • Unit 7

There are two Family Letters for Unit 3. Currently available translations are linked below.