NAME ______________________________ DATE _______________

Investigation 1

FAMILY LETTER

(PAGE 1 OF 2)

About the Mathematics in This Unit

Dear Family,

We are beginning a new unit in mathematics called Make a Shape, Fill a Hexagon. This geometry unit focuses on two-dimensional shapes. In this unit, students look for and identify two-dimensional shapes in their environment and make a Class Book of Shapes and a Shape Mural using geometric shapes to depict the objects they see. They look carefully at the attributes of shapes as they describe, identify, compare, construct, and represent 2-D shapes. Students also combine shapes to make new shapes (e.g., 2 trapezoids make a hexagon).

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

Benchmarks/Goals Examples
Identify and describe the overall size, shape, and features of familiar 2-D shapes.

“It has a triangle on one side.”

“It's big.”

“It would make a good ramp.”

“It looks like a piece of pie.”

“One part is pointy.”

A triangle block.

Make 2-D shapes. A triangle instrument. A grid shows a rectangle in the bottom left corner.

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Table of Contents

Investigations 3 in Number, Data, and Space®, Student Activity Book Unit 1 Counting People, Sorting Buttons Unit 2 Counting Quantities, Comparing Lengths Unit 3 Make a Shape, Fill a Hexagon Unit 4 Collect, Count, and Measure Unit 5 Build a Block, Build a Wall Unit 6 How Many Now? Unit 7 How Many Noses? How Many Eyes? Unit 8 Ten Frames and Teen Numbers