Announcing Bridges in Mathematics Third Edition!

See what’s new in the curriculum!

Six of eight units are devoted to number and operations. They help students learn to use numbers, including written numerals, to represent quantities and solve problems; count out a given number of objects; compare sets or numerals; and model simple joining and separating situations with objects, fingers, words, actions, drawings, numbers, and equations.

The remaining two units focus on geometry. They invite students to describe and analyze the attributes of shapes in the world around them; find, count, draw, build, and compare shapes; and fit shapes together to make other shapes and complete puzzles.

## Content Outline and Samples

### Unit 1

#### Numbers to Five & Ten

• Sorting Shoes
• Friendly Fives
• Friendly Tens
• Using Structures & Patterns

### Unit 2

#### Numbers to Ten

• Dots to Ten
• Introducing the Number Rack
• Five & Some More
• Composing & Decomposing Shapes

### Unit 3

#### Bikes & Bugs: Double, Add & Subtract

• Bicycle Doubles
• Add, Subtract & Double It!
• Put Them in Order

### Unit 5

#### Two-Dimensional Geometry

• Exploring Shapes
• Circles, Squares, Triangles & Rectangles
• Constructing & Drawing Shapes
• Sorting, Comparing, Composing & Decomposing Shapes

### Unit 6

#### Three-Dimensional Shapes & Numbers Beyond Ten

• What Do You Know About Three-Dimensional Shapes?
• More Three-Dimensional Shapes
• Exploring the Teen Numbers
• Combinations to Ten

### Unit 8

#### Computing & Measuring with Frogs & Bugs

• Catching, Counting & Comparing
• Frogs: Estimating & Measuring
• Tens & Ones