Cluster 3: Work with equal groups of objects to gain foundations for multiplication. (Supporting Cluster)Archived

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

Hooray for arrays is an exciting way to introduce pre-multiplication skills by using repeated addition. Students will get excited when they listen to the story and shout HOORAY for ARRAYS once they play the educational game connected to the standard.

Type: Lesson Plan

In this lesson, the class will be guided through solving even and odd questions involving a picnic scenario. Students will explore and discover various strategies for determining if numbers 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. A follow up lesson will need to be completed to address the second section of the standard involving writing an equation to express an even number as a sum of two equal addends.

Type: Lesson Plan

In this lesson, the students will explore even and odd through a variety of hands-on learning activities. Rotating center ideas are also included in this lesson. Students will utilize model based inquiry to determine and justify knowledge of number sense up to 100, comparisons of groups, and odd/even relationships of numbers up to 20.

Type: Lesson Plan

Students will learn how to partition rectangles into equal parts and write equations to represent the parts. They will gain a basic understanding of area from the book Bigger, Better, BEST! by Stuart J. Murphy.

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

In this lesson, students will determine if numbers 0-20 are even or odd. Students will begin to develop the understanding that place value (specifically the ones place) will be useful in determining whether 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

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

The purpose of this task is for students to compare two options for a prize where the value of one is given $2 at a time, giving them an opportunity to "work with equal groups of objects to gain foundations for multiplication." This context also provides students with an introduction to the concept of delayed gratification, or resisting an immediate reward and waiting for a later reward, while working with money.

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

This is a Project Based Learning Unit that includes research for community members and citizens. It also includes making and analyzing arrays, and making a presentation. 

Type: Unit/Lesson Sequence