Investigations 3 in Number, Data, and Space, Student Activity Book [Grade 1]

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Unit 2 Comparing and Combining Shapes > Investigation 1 > About the Mathematics in This Unit

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About the Mathematics in This Unit

Benchmarks/Goals	Examples
Use geometric language to describe and identify important features of familiar 2-D shapes, and use those features to sort those shapes.	These shapes have 3 sides.	These shapes do not have exactly 3 sides.

Benchmarks/Goals

Examples

Use geometric language to describe and identify important features of familiar 2-D shapes, and use those features to sort those shapes.

These shapes have 3 sides.

Three shapes: isosceles triangle, acute triangle, right triangle.

These shapes do not have exactly 3 sides.

Three shapes: square, hexagon, circle.

Students will continue to engage in math problems and activities and share how they solve a given problem. At home, you can encourage your children to explain their thinking as they engage in activities that further support the mathematics in this unit.

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Investigations 3 in Number, Data, and Space®, Student Activity Book

Contents

Unit 1 Building Numbers and Solving Story Problems

Investigation 1

Investigation 2

Investigation 3

Unit 2 Comparing and Combining Shapes

Investigation 1

Investigation 2

Unit 3 How Many of Each? How Many in All?

Investigation 1

Investigation 2

Investigation 3

Investigation 4

Unit 4 Fish Lengths and Fraction Rugs

Investigation 1

Investigation 2

Unit 5 Number Games and Crayon Problems

Investigation 1

Investigation 2

Investigation 3

Unit 6 Would You Rather Be an Eagle or a Whale?

Investigation 1

Investigation 2

Unit 7 How Many Tens? How Many Ones?

Investigation 1

Investigation 2

Investigation 3

Unit 8 Blocks and Buildings

Investigation 1