Bridges® Intervention is a mathematics resource designed to provide students with short periods of targeted instruction to support specific skills and concepts. It is designed to support all students in making sense of mathematics by building on what they already know and understand. Bridges Intervention is organized by big ideas rather than grade level. Volumes 1–4 address important number concepts as well as computation skills with addition and subtraction. Volumes 5–9 address multiplication, division, fractions, and decimals. All volumes include activities, games, practice pages, and problem situations. The tasks and activities in Bridges Intervention reflect what education research tells us about how children make sense of mathematics. Most activities involve models that help students understand big ideas, generally starting with hands-on math tools, moving to two-dimensional representations (frames, graphic organizers, sketches, etc.), and finally to mental images.
Unit 1: Multiplicative Thinking
Models for Multiplication & Division
Primes & Composites
Multiplicative Comparisons & Equations
Measurement Experiences
Unit 2: Multi-Digit Multiplication & Early Division
Building Multiplication Arrays
Arrays & Ratio Tables
Multiplication Stories & Strategies
Early Division with Remainders
Unit 3: Fractions & Decimals
Equivalent Fractions
Comparing, Composing & Decomposing Fractions & Mixed Numbers
Introducing Decimals
Fractions & Decimals
Unit 4: Addition, Subtraction & Measurement
Place Value & the Standard Addition Algorithm
The Standard Subtraction Algorithm
Measurement
Measurement & Data Displays
Unit 5: Geometry & Measurement
Measuring Angles
Polygons & Symmetry
Area & Perimeter
Angles in Motion
Unit 6: Multiplication & Division, Data & Fractions
Multiplication & Division Strategies
Revisiting Area & Perimeter
Line Plots, Fractions & Division
More Division
Unit 7: Reviewing & Extending Fractions, Decimals & Multi-Digit Multiplication
Comparing Fractions & Writing Equivalent Fractions
Decimals & Decimal Fractions
Introducing the Standard Multiplication Algorithm
Extending the Standard Multiplication Algorithm