NAME ______________________________ DATE _______________

FAMILY LETTER

(PAGE 1 OF 2)

About the Mathematics in This Unit

Dear Family,

For the next few weeks we will be working on a new mathematics unit about measurement and fractions called Fish Lengths and Fraction Rugs. Your child will be comparing the lengths of objects by measuring them with a variety of units, such as cubes, paper clips, and inch tiles. We will also work on story problems about comparing lengths, learn how to tell time to the hour, and investigate halves and fourths.

Throughout this unit, students will be working toward these goals:

Benchmarks/Goals Examples
Compare the lengths of two objects indirectly using a third object.

The book is longer than the pencil. The eraser is shorter than the pencil. So the book is longer than the eraser.

A book, a pencil, and an eraser. The book extends farther than the pencil and the erasure. The pencil extends farther than the erasure.

Demonstrate accurate techniques when measuring an object or distance. These techniques include starting at the beginning, ending at the end, leaving no gaps or overlaps, measuring in a straight line, and keeping track of the number of units. A fish and a cube train. The fish is as long as the cube train. The cube train has 7 cubes.

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Table of Contents

Investigations 3 in Number, Data, and SpaceĀ®, Student Activity Book Unit 1 Building Numbers and Solving Story Problems Unit 2 Comparing and Combining Shapes Unit 3 How Many of Each? How Many in All? Unit 4 Fish Lengths and Fraction Rugs Unit 5 Number Games and Crayon Problems Unit 6 Would You Rather Be an Eagle or a Whale? Unit 7 How Many Tens? How Many Ones? Unit 8 Blocks and Buildings