# Do The Math: Number Core Teacher Guide

The Addition and Subtraction Number Core module supports the development of quantity by using benchmark numbers, thinking flexibly about composing and decomposing numbers, and building facility with figuring sums. The Teacher Guide models mathematical thinking, includes visual representations, and provides point-of-use support to better serve students' individual needs. It includes step-by-step teaching instructions, guidance for monitoring student progress, and specific information about how to use the Classroom Materials and mTools effectively.

#### Full Description

Math is about more than finding the correct answer. It's about using numerical reasoning to find the best strategy for solving a problem. Created by Marilyn Burns, one of America's most trusted math educators, and a team of master educators, <em>Do The Math®</em> provides flexible, classroom-tested instruction for building numerical reasoning and confidence. "Classroom tested" means there's plenty of support in each module's 30 half-hour lessons. Teachers build capacity as students move from basic conceptual understanding to skills development in addition and subtraction, multiplication, division, and fractions. <br />
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Do The Math is designed to help teachers develop the foundations of mathematical understanding for all students. The Addition and Subtraction Number Core module supports the development of quantity by using benchmark numbers, thinking flexibly about composing and decomposing numbers, and building facility with figuring sums. The Teacher Guide models mathematical thinking, includes visual representations, and provides point-of-use support to better serve students' individual needs. It includes step-by-step teaching instructions, guidance for monitoring student progress, and specific information about how to use the Classroom Materials and mTools effectively.

#### Additional Resource Information

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