Standard 3: Develop an understanding of multiplication.

Students are asked to make an array from pennies and then skip count to find the total number of pennies and write an addition equation to represent the array.

Type: Formative Assessment

Students are asked count by rows or columns to determine the total number in an array and then write an addition equation to represent the array.

Type: Formative Assessment

Students are asked to write an equal addends equation that corresponds to a given array.

Type: Formative Assessment

Students are asked to find the total number of objects in a 3 x 4 array.

Type: Formative Assessment

Students are asked to determine if each of two collections has an odd or even number of objects, and to explain how they made their decisions.

Type: Formative Assessment

Students are asked to determine if a given number is even or odd.

Type: Formative Assessment

Students are asked to determine if a given number is even or odd.

Type: Formative Assessment

Students are asked to write even numbers within 20 as the sum of two equal addends.

Type: Formative Assessment

This lesson will introduce students to the concept of odd and even numbers. The lesson will show that objects that can be grouped by 2's (in pairs) represent even numbers and objects that cannot be grouped in pairs (have 1 left over) represent odd numbers. The lesson will also address two-digit numbers (up to 20) to show that the place value of the number in the ones place determines whether a two-digit number is odd or even.

Type: Lesson Plan

Students will learn how to represent and count equal groups through the use of literature and situational story problems. Using the book Each Orange Had 8 Slices, students will use manipulatives to find the total number of objects in a collection of equal groups. Students will learn to write corresponding repeated addition equations.

Type: Lesson Plan

In this lesson, the class will be guided through representing even numbers using two equal groups and odd numbers as two equal groups with one left over. Students will explore various strategies for representing numbers that are even or odd based on whether they can be divided into two equal teams for a kickball game or whether everyone will have a buddy to pair up with on the picnic. Students will explore writing addition expressions to represent even numbers as two equal addends and odd numbers as two equal addends plus 1.

Type: Lesson Plan

This lesson allows students to use everyday objects to understand equal groups by representing a total number of objects using rectangular arrays and repeated addition equations. The lesson uses "The Doorbell Rang" by Pat Hutchins to engage students during the lesson and to make a connection by using literacy in mathematics. This lesson will provide a foundation for the conceptual understanding of division by creating equal groups using arrays and repeated addition.

Type: Lesson Plan

This lesson illustrates that when you have a rectangular array of objects, you can determine the sum of the objects by using a repeated addition equation. This builds a foundation for multiplication.

Type: Lesson Plan

Students will create groups of objects to determine if a number is even or odd.

Type: Lesson Plan

This is a lesson in which students will practice making rectangular arrays and writing equations, with and without story problems, using repeated addition to find the total number of objects in each array. This lesson is designed to help prepare students for multiplication.

Type: Lesson Plan

An engaging activity that includes using repeated addition to find the total number of objects in equal groups and representing the total number of objects using arrays and equations.

Type: Lesson Plan

This resource helps students identify numbers as odd or even using a variety of methods including creating pairs, skip counting by two’s, using number lines, and arrays. It also leads them to understand that all even numbers can be written as a sum of equal addends and odds can be written as the sum of equal addends plus one.

This resource can be conducted as one lesson or can be spread over multiple mini sessions if needed as noted within this resource as Lesson 1 and Lesson 2.

Type: Lesson Plan

Help Destinee use arrays and repeated addition to find how many donuts that she has in this interactive tutorial.

Type: Original Student Tutorial

Come explore even and odd numbers of objects and learn to determine if a group of objects has an even or odd number in this beach-themed, interactive tutorial.

Type: Original Student Tutorial

Unlock an effective teaching tool that can help students all the way from basic counting principles to multiplying polynomials.

Dot Matrix sheet is available for dowload here.

Type: Perspectives Video: Teaching Idea

Unlock an effective teaching strategy for teaching inequalities and equations with the math balance in this Teacher Perspectives video for educators.

Type: Perspectives Video: Teaching Idea

This task is specifically written so that students have opportunities to use different strategies to determine whether a set has an even or odd number of objects.

Type: Problem-Solving Task

Students who work on this task will benefit in seeing that given a quantity, there is often more than one way to represent it, which is a precursor to understanding the concept of equivalent expressions. This particular question also lays a foundation for students to understand the commutative property of multiplication in third grade. This task would be much more valuable if included in an appropriate place in an instructional sequence than as an isolated task.

Type: Problem-Solving Task