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Curated OER
Division with Dividends to 99
In this math activity, students find the answers to the following long division problems. The problems can have remainders.
Curated OER
Long Division in Two Digits
In this math worksheet, students find the solutions to the problems for long division. The answers can be shown in the printable version.
Curated OER
Finding Sums to 6
Students explore the additive identity property where they add multiple numbers to get to the number 6. In this number 6 lesson plan, students also work on their addition charts.
Curated OER
Finding Addition Patterns
Students practice finding the sums of two-one digit numbers. For this addition lesson plan, students also record facts onto an addition chart.
Curated OER
Square Numbers
Fourth graders use square tiles to help them explain the concept of square numbers.
Curated OER
Area Explorations
Students explore the area of rectangles. They practice finding area by playing an onliine computer activity where they calculate the area of a rectangle to solve a problem.
Khan Academy
Khan Academy: Math: 3rd Grade: Understand Multiplication Using Groups of Objects
Math practice exercise on using arrays and repeated addition to visualize multiplication.
K-5 Math Teaching Resources
K 5 Math Teaching Resources: Number Story Arrays [Pdf]
A number story activity for students to practice addition of equal groups and multiplication.
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...
Khan Academy
Khan Academy: Intro to Multiplication
Guided questions with explanations using equal groups, arrays, and repeated addition as an introduction to multiplication.
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...
Khan Academy
Khan Academy: Multiply With Arrays
Practice multiplying 1-digit numbers using arrays. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Meaning of Multiplication
Practice representing multiplication as equal groups, repeated addition, or arrays. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints. Video content is available for...
Khan Academy
Khan Academy: Intro to Multiplication
Explains what multiplication is and how to represent it using equal groups and arrays. Also looks at the strategies of repeated addition and skip counting and how they can be used to solve multiplication problems. Includes practice...
PBS
Pbs: Modeling Fraction Multiplication Using Arrays
This video illustrates a word problem involving the multiplication of fractions using an array to model the solution visually. The problem involves puffins, arctic birds that live in colonies and fish to feed their young.
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]
Better Lesson
Better Lesson: Multiplication Facts With Arrays
Third graders are expected to fluently multiply and divide within 100. This allows students to practice their math facts and then check their work using area models.
Better Lesson
Better Lesson: Arrays Focusing on Rows and Columns
Third graders develop a meaning of multiplication through the use of arrays.
Other
Nearpod: Multiplication of Whole Numbers
In this lesson on multiplication, students will understand and model arrays to help them multiply and count efficiently in everyday situations. They will also practice multiplication facts.
Other
Nearpod: Identity Property of Multiplication
In this lesson on the identity property of multiplication, students explore arrays, learn key vocabulary, and write equations.
Other
Nearpod: Multiplication: Valentine's Edition
In this lesson plan, 3rd graders will use arrays, repeated addition, skip counting, and equal groups to solve multiplication word problems. The lesson plan has a Valentine's Day theme.
Other
Nearpod: Commutative Property of Multiplication
In this instructional activity on the commutative property of multiplication, students explore arrays, learn key vocabulary, and write equations.
Cool Math
Coolmath: Coolmath4kids: Multiplication: Equal Groups
Uses visual models to explain what multiplication is and includes sample problems to try.
Khan Academy
Khan Academy: Intro to Associative Property of Multiplication
An introduction to the associative property of multiplication. Includes examples and practice problems throughout, along with explanations of solutions.