NAME ______________________________ DATE _______________

FAMILY LETTER

(PAGE 1 OF 2)

About the Mathematics in This Unit

Dear Family,

We are beginning a new unit in mathematics called Comparing and Combining Shapes. This geometry unit focuses on two-dimensional shapes and the relationships among them. Throughout this unit students observe, describe, name, compare, classify, represent, and build with 2-D shapes. Later in the year, in another geometry unit, students will learn about three-dimensional shapes and objects. Throughout this unit, students will be working towards the following goals:

Benchmarks/Goals Examples
Compose and decompose shapes in different ways.

A hexagon can be made with different shapes.

Two hexagons made of different shapes. d
Build and draw familiar 2-D shapes. Two triangles: one on a graph, one on a dot matrix. Both have bases 4 units wide and are 4 units tall.

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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