Better Lesson
Better Lesson: Skittle Arrays
Skittles - yum!! You will instantly have your student's attention when you teach about arrays using Skittles. This detailed lesson plan walks you through the steps, provides worksheets for varying math levels, and includes a video of the...
Better Lesson
Better Lesson: What Is an Array?
Teach a activity about repeated addition and arrays by using this very detailed lesson plan. The author walks you through the activity step-by-step and even includes a video of her teaching about arrays for reference. Word problem...
Better Lesson
Better Lesson: Writing Equations for Arrays
Second graders will learn how to make number sentences for an array by walking around the classroom and writing number sentences for the different arrays the teacher hangs around the room. A video is included, along with examples of...
Illustrative Mathematics
Illustrative Mathematics: Counting Dots in Arrays
This activity addresses CCSS 2.OA.C.4 where students count dots in an array using repeated addition. This skill lays the foundation for an understanding of multiplication.
National Council of Teachers of Mathematics
Nctm: Illuminations: Factorize
This resource investigates the concept of factors by creating rectangular arrays. The interactive tool allows learners to relate area to multiplication.
CPALMS
Cpalms: Using Arrays to Model the Distributive Property
[Free Registration/Login Required] Students are presented with a rectangular area model and asked to write an equation that represents the distributive property. Detailed lesson plan provided, along with assessment methods,...
Alabama Learning Exchange
Alex: Area Model of Multiplication Base 10 Manipulatives
Students will use base 10 manipulatives to build a rectangular array to represent double digit multiplication. Students will make the connection between the standard algorithm and the rectangular array.This lesson plan was created as a...
OnlineMathLearning.com
Online Math Learning: Addition and Arrays (Grade 2)
A list of suggested activities for addressing CCSS 2.OA.C.4 where students work with arrays and repeated addition. Includes a problem for a 3X5 array and its solution in a video. [8:23]
Alabama Learning Exchange
Alex: Peep Peep
Students will take a virtual tour of a Peep Candy factory. Students will observe the way Peeps are packed in rectangle shaped arrays, 2 rows of 5.
PBS
Pbs: Modeling Fraction and Mixed Number Division Using Arrays
This video illustrates how to use an array as a visual model for solving a word problem involving the division of fractions and mixed numbers. The problem asks students to determine the width of a rectangular fennec fox den based on its...
PBS
Pbs: Modeling Fraction Division Using Arrays
This video illustrates a visual model for solving a word problem involving the division of fractions. The problem asks students to determine the width of a rectangular platypus burrow based on its length and area. In the accompanying...
Shodor Education Foundation
Shodor Interactivate: Factorize 2
The resource consists of student notes, instructor notes, and an interactive activity. The activity allows learners to find the factors of a given number and then draw the product as the area of a rectangle on a grid.
National Council of Teachers of Mathematics
Nctm: Illuminations: Factorize
With this activity, you can visually explore the concept of factors by creating rectangular arrays. The length and width of the array are factors of your number.
Khan Academy
Khan Academy: Repeated Addition
In this exercise, students practice repeated addition. Students receive immediate feedback and have the opportunity to get hints, watch a tutorial video, and try questions repeatedly.
Amby Duncan-Carr
Amby's Math Resources: Finding the Area of a Rectangle
The tutorial investigates area and how it is the total number of square tiles covered. Examples and practice problems are included.
Alabama Learning Exchange
Alex: What's Your Question? Multiplication Word Problems
Students will explore multiplication and word problems. They will work cooperatively to examine a story scenario, list possible questions to develop a completed word problem and solve it using a variety of strategies. The students will...
Other
2nd Grade Worksheets: Common Core State Standard 2.oa.4
A collection of four learning exercise sets that address the Common Core State Standard 2.OA.4.