# Math in Practice

Teaching and learning math can be hard. Math in Practice is like a math coach for every teacher. This grade-by-grade resource is filled with strategies and support for teaching math more confidently and effectively.

• Overview

Math in Practice is a standard-based, professional learning resource from Sue O'Connell and colleagues. This grade-by-grade K–5 resource fits with any math curriculum you are using. It identifies the big ideas of math content and best-practice teaching, unpacking essential teaching strategies and detailing why those strategies are powerful.

Math in Practice is not another curriculum; it’s professional development in a book! It supports teachers, administrators, and entire school communities as they:

Guide students into deeper math understanding

Respond to the challenges of their math curriculum

Support students who are struggling, excelling, and anywhere in between

Each grade-level book is organized into modules that carefully unpack the specific math content taught at each grade, K–5. Rather than being used in order, teachers can select modules as needed based on their curriculum map, areas of instructional focus, or reteaching needs.

Every module provides:

• insights about the key math ideas
• teacher notes highlighting approaches for promoting student understanding
• a wealth of classroom tasks and activities illustrating the specific strategies
• an extensive collection of corresponding online resources

Click below to see the full list of modules in each grade-level book:

Kindergarten Modules

Counting and Cardinality: Numbers 1–5
Counting and Cardinality: Numbers 0–10
Counting and Cardinality and Place Value: Numbers 0–20
Counting Numbers
Comparing Numbers 1–10
Decomposing Numbers
Understanding Subtraction
Understanding Facts
Exploring Measurement
Sorting and Classifying Objects
Introducing Geometry
Exploring Geometry

Addition Word Problems with Sums to 20
Connecting Subtraction and Addition to Solve Word Problems
Math Fact Understanding and Fluency: Expanding on +/-1, +/-0
Math Fact Understanding and Fluency: +/-2
Making Ten
Counting and Understanding Place Value
Exploring Addition and Subtraction with a Two-Digit Number
Measuring Lengths with Indirect Comparisons
Telling Time to the Hour and Half Hour
Working with Money
Represent and Interpret Data
Understanding and Describing Shapes and Defining Attributes
Partitioning Shapes into Halves and Fourths

Problem Solving
Math Fact Understanding and Fluency
Foundations for Multiplication: Equal Groups
Place Value
Compare Two Three-digit Numbers
Understand Multi-digit Subtraction
Extend Understanding of Multi-Digit Subtraction
Length Measurement
Time
Money
Represent and Interpret Data
Describing Geometric Shapes
Partition Shapes

Understanding Multiplication and Division
Understanding Properties of Multiplication and Division
Fluently Multiply and Divide
Solving One- and Two-Step Problems with All Four Operations
Rounding Numbers to the Nearer Ten or Hundred
Fluently Subtract within 1,000
Understanding Fractions and Fraction Notation
Fraction Equivalence
Comparing Fractions
Time
Mass and Volume
Represent and Interpret Data
Understand the Concept of Area
Perimeter
Understanding and Describing Shapes

Understanding and Solving Problems with Multiplicative Comparison
Factors, Multiples, and Prime and Composite Numbers
Understand the Place Value System
Fluently Add and Subtract Multi-digit Numbers Using the Standard Algorithm
Use Place Value to Perform Multi-digit Multiplication
Use Place Value to Perform Multi-digit Division
Equivalence and Ordering of Fractions
Adding and Subtracting Fractions with Like Denominators
Multiplying Fractions by Whole Numbers
Understand Decimal Notation for Fractions
Measurement and Measurement Conversions
Area and Perimeter
Represent and Interpret Data
Geometry and Geometric Measurement
Solving Complex Problems

Place Value
Write and Interpret Numerical Expressions
Multiplying with Multi-Digit Numbers
Division with Multi-Digit Whole Numbers
Multiplication and Division with Decimals
Adding and Subtracting Fractions with Unlike Denominators
Fractions as Division
Multiplication of Fractions by Fractions and Whole Numbers
Division with Whole Numbers and Unit Fractions
Converting Like Measurement Units
Represent and Interpret Data
Geometric Measurement: Exploring Volume
The Coordinate System
Classify Two Dimensional Figures

• Guide for Teachers

The Guide for Teachers lays out big ideas in best-practice math instruction, including topics such as math talk, modeling, and differentiation.

• Asking questions that stimulate student thinking
• Making sense of and connections between mathematical ideas
• Using representations and models effectively
• Helping students communicate about math
• Learning from meaningful formative assessment

The Guide for Administrators helps principals, coaches, and other leaders know what to look for in effective math classrooms and how to support teacher growth.

• The importance of ongoing professional development
• What to look for in the “new” math classroom
• How to support teachers and promote effective instruction
• Ideas for intervention and assessment across an entire school
• Support for working with parents

## Crosswalks and Standards Alignments

Alignments and crosswalks are organized by grade level (K-5) so you can see and study—by unit, lesson plan, or standard—where Math in Practice supports teachers and students.

Crosswalks with Popular Math Programs

Common Core Alignment

Texas TEKS Alignment

Oklahoma OAS Alignment

Virginia SOL Alignment

Tennessee Math Standards Alignment

Georgia Math Standards Alignment

## Praise for Math in Practice

These materials are like Reading Strategies for math! As a literacy-oriented person, math concept development isn't second nature. Sue O’Connell's materials make it feel do-able. From her well-organized lesson examples, grade-by-grade learning progressions, and her accessible writing style coaching the reader through the thinking behind the lessons, every teacher will feel like they can pick up these materials, spend a few minutes getting oriented, and then jump into action in the classroom. My only complaint: Where was this when I was a classroom teacher?

Jen Serravallo Author of The Reading Strategies Book

What a wonderful resource! There is clear and helpful guidance on the core elements of math teaching—reasoning, connections, representations, and discourse. There is practical and powerful information on what to do and how to do it. In other words, Sue has written a great primer on what we need to know and be able to do in our elementary classrooms to be far more effective teachers of mathematics. What more could a teacher of K–5 math ask for?

Steve LeinwandAmerican Institutes for Research, author of Accessible Mathematics

I grew to believe I stunk at math. I couldn’t memorize times-tables or geometric equations. Math, it seemed, was about knowing—not understanding. This is where Sue O’Connell’s Math in Practice offers an important opportunity for change. The pages of this collection ring with a student-centered, teacher-empowering heart. Sue, as a friendly and knowledgeable mentor, models differentiated approaches for truly understanding key grade-level mathematical concepts. You then leave each section feeling empowered to do the same for students.

Chris LehmanFounding Director of The Education Collaborative, coauthor of Falling in Love with Close Reading

What a resource! The tone of each module in every grade-level book is helpful, supportive, and should make any teacher feel it was written for them—and it was. There is no doubt that classroom teachers will want to take their grade-level book home with them every night! They are that helpful. The mathematics content presented is continuously connected to problem-based contexts throughout each grade-level book and regular use of important representations—visual or manipulative—is another key feature of the Math in Practice materials. Each module’s attention to “Ideas for Instruction and Assessment” is particularly important as a way to recognize and value, regularly, that instruction and assessment are linked, not apart

Francis (Skip) Fennell L. Stanley Bowlsbey Professor of Education Emeritus;
Project Director, Elementary Mathematics Specialists and Teacher Leaders Project, McDaniel College; Past President of NCTM