MAFS.2.OA.3.4Archived Standard

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Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and up to 5 columns; write an equation to express the total as a sum of equal addends.
General Information
Subject Area: Mathematics
Grade: 2
Domain-Subdomain: Operations and Algebraic Thinking
Cluster: Level 1: Recall
Cluster: Work with equal groups of objects to gain foundations for multiplication. (Supporting Cluster) -

Clusters should not be sorted from Major to Supporting and then taught in that order. To do so would strip the coherence of the mathematical ideas and miss the opportunity to enhance the major work of the grade with the supporting clusters.

Date Adopted or Revised: 02/14
Content Complexity Rating: Level 1: Recall - More Information
Date of Last Rating: 02/14
Status: State Board Approved - Archived

Related Courses

This benchmark is part of these courses.
5012040: Mathematics - Grade Two (Specifically in versions: 2014 - 2015, 2015 - 2022, 2022 and beyond (current))
7712030: Access Mathematics Grade 2 (Specifically in versions: 2014 - 2015, 2015 - 2018, 2018 - 2022, 2022 and beyond (current))
5012005: Foundational Skills in Mathematics K-2 (Specifically in versions: 2019 - 2022, 2022 and beyond (current))

Related Access Points

Alternate version of this benchmark for students with significant cognitive disabilities.

Related Resources

Vetted resources educators can use to teach the concepts and skills in this benchmark.

Formative Assessments

Counting By Rows or Columns:

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

All Your Penguins in a Row:

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

Writing an Equal Addends Equation:

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

Type: Formative Assessment

Counting an Array:

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

Type: Formative Assessment

Lesson Plans

Hooray Arrays:

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

Which Rectangle is Bigger?:

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

Déjà Vu Addition, 2 plus 2 plus 2:

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

Array Addition:

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

I Array + You Array = Arrays!:

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

Original Student Tutorial

Destinee Dragon’s Donut Troubles: Arrays:

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

Type: Original Student Tutorial

Problem-Solving Task

Counting Dots in Arrays:

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

Unit/Lesson Sequence

Building a Community:

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

MFAS Formative Assessments

All Your Penguins in a Row:

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.

Counting an Array:

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

Counting By Rows or Columns:

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.

Writing an Equal Addends Equation:

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

Original Student Tutorials Mathematics - Grades K-5

Destinee Dragon’s Donut Troubles: Arrays:

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

Student Resources

Vetted resources students can use to learn the concepts and skills in this benchmark.

Original Student Tutorial

Destinee Dragon’s Donut Troubles: Arrays:

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

Type: Original Student Tutorial

Problem-Solving Task

Counting Dots in Arrays:

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

Parent Resources

Vetted resources caregivers can use to help students learn the concepts and skills in this benchmark.

Problem-Solving Task

Counting Dots in Arrays:

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