GRADE 3

MODULE 1

GRADE FOCUS

Third Grade mathematics is about (1) developing understanding of multiplication and division and strategies for multiplication and division within 100; (2) developing understanding of fractions, especially unit fractions (fractions with numerator 1); (3) developing understanding of the structure of rectangular arrays and of area; and (4)describing and analyzing two- dimensional shapes.

​

• Module 1: Properties of Multiplication and Division and Solving Problems with Units of 2–5 and 10
• Module 2: Place Value and Problem Solving with Units of Measure
• Module 3: Multiplication and Division with Units of 0, 1, 6-9, and Multiples of 10
• Module 4: Multiplication and Area
• Module 5: Fractions as Numbers on the Number Line
• Module 6: Collecting and Displaying Data
• Module 7: Geometry and Measurement Word Problems

​

LET’S CHECK IT OUT!

​

MODULE 1 FOCUS

In this first module of Grade 3, we build on second grade

knowledge of addition and work toward greater fluency.

We will also be building arrays (arrangements of a set of

objects organized into equal groups in rows and columns),

and setting the stage for multiplication and division.

​

MORE SPECIFICALLY, CHILDREN WILL LEARN HOW TO:

​

• Use multiplication and division within 100 to solve word problems in situations involving equal groups, arrays, and measurement quantities.
• Understand properties of multiplication and the

relationship between multiplication and division

• Fluently multiply and divide within 100
• Solve two-step word problems involving the four

operations (+, -, x, ÷)

​

​

Eureka Math Parent Guide

A GUIDE TO SUPPORT PARENTS AS THEY WORK WITH THEIR STUDENTS IN MATH

TOPIC OVERVIEW

Topics are the lessons within a module that help children master the skills above. Here are the lessons that will guide your child through Module 1:

​

• Topic A: Multiplication and the Meaning of the Factors
• Topic B: Division as an Unknown Factor Problem
• Topic C: Multiplication Using Units of 2 and 3
• Topic D: Division Using Units of 2 and 3
• Topic E: Multiplication and Division Using Units of 4
• Topic F: Distributive Property and Problem Solving using units of 2-5 and 10.

​

​

WORDS TO KNOW

​

• Array: a set of numbers or objects that follow a specific pattern, a matrix�
• Commutative Property: e.g., rotate a rectangular array 90 degrees to demonstrate that factors in a multiplication sentence can switch places (2 x 3 = 3 x 2)�
• Equal groups: with reference to multiplication and division; one factor is the number of objects in a group and the other is a multiplier that indicates the number of groups�
• Equation: a statement that 2 expressions are equal, e.g., 3 × 4 = 12�
• Distributive Property: e.g. 12 × 3 = (10 × 3) + (2 × 3). The 3 is the multiplier and the 12 is decomposed into 10 and 2.�
• Factors: numbers that are multiplied to obtain a product�
• Quotient: the answer when one number is divided by another

​

​

SAMPLE PROBLEMS

​

SAMPLE 1 SAMPLE 2

​

An illustration of the Commutative Property

​

​

​

​

​

​

SAMPLE 3

HOW YOU CAN HELP AT HOME

• Have your student set out groups of small objects in arrays (equal groups in rows and columns) and write the accompanying multiplication equation.�
• Encourage your student to practice multiplication facts for 2s, 3s, 4s, 5s, and 10s until they know them fluently.

​

SAMPLE 4

​

Anna picks 24 flowers. She makes equal bundles of flowers and gives 1 bundle to each of her 7 friends. She keeps a bundle for herself too. How many flowers does Anna put in each bundle?