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Lesson Plan
Code.org

Introduction to Arrays

For Teachers 9th - 12th
How can you store lists in a computer program? The 16th installment of a 21-part unit introduces arrays as a way to store lists within a variable. Individuals program a list of their favorite things—adding interest to the activity.
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Printables
K-5 Math Teaching Resources

Large Five Frames with Dots

For Students Pre-K - 2nd Standards
Enhance young mathematicians' counting strategies using this large five frames printable. Here, you'll find a large one by five array with red counters to support adding and subtracting through visual images of numbers one through five. 
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eBook
Savvas Learning

Saxon Math 5/4

For Teachers 3rd - 5th Standards
You'll never have to search for another worksheet again after downloading this extensive collection of Saxon math materials. With over 600 pages of example problems and skills practice exercises, this is a must-have resource for any...
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Lesson Plan
National Security Agency

Awesome Area - Geometry and Measurement

For Teachers 2nd - 4th Standards
Break out those math manipulatives, it's time to teach about area! Capturing the engagement of young mathematicians, this three-lesson series supports children with learning how to measure the area of squares, rectangles, and other...
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Lesson Plan
Illustrative Mathematics

The Napping House

For Teachers Pre-K - 1st Standards
How many people and animals can cram into a single bed? Find out with this cross-curricular math and language arts lesson. Following along with a reading of the children's book The Napping House by Audrey Wood, young mathematicians add...
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Assessment
Howard County Schools

Exit Ticket 3.MD.5

For Students 3rd - 4th Standards
Intended for use as an exit ticket, this worksheet can be used as an extension to a lesson, test, or even homework. Learners complete three tasks that involve finding the area of a figure in square units. Young mathematicians can be...
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Worksheet
DK Publishing

Finding 5 - Multiplying by 5

For Students 2nd - 4th Standards
Visualize multiplication facts using rectangular arrays. Scholars multiply single-digit factors by five and represent each number sentence using sets of dots. They circle the groups of five and fill in missing parts of the equations....
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Lesson Plan
Curated OER

Picture Board

For Teachers 2nd - 4th Standards
Learners divide a poster board so everyone gets the same amount of area to decorate. Youngsters talk about the different ways to divide a rectangle. They measure their lines to make sure that each piece is equal and then decorate their...
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Worksheet
Curated OER

Number Story Arrays

For Students K - 3rd
Use these number story cards to give scholars practice with arrays and number models. There are 12 cards here, each with a simple object scenario for learners to apply mathematically. Mathematicians are given the number of rows and how...
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PPT
Curated OER

Multiplication as Repeated Addition

For Teachers 2nd - 3rd Standards
Here is an excellent teaching tool! This presentation would be terrific to use when teaching your young learners about the relationship between multiplication, repeated addition, and arrays. Excellent examples are given, and the text...
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Lesson Plan
Curated OER

Multiplication: Bugs Can Multiply, So Can I!

For Teachers 2nd - 4th
Develop multiplication skills with your class. Youngsters will visualize multiplication as repeated addition. Then they will create a multiplication bug book and discover arrays as a strategy for multiplication problem solving....
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Unit Plan
Curated OER

Multiplication Strategies - A Day at the Zoo

For Teachers 3rd - 4th
This is an amazing 33-page resource for teaching multiplication! Your mathematicians will discover the connection between multiplication and repeated addition. They also will work collaboratively with arrays while studying zoo animals....
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PPT
Curated OER

Multiplication Basics

For Teachers 2nd - 4th Standards
A great resource gets kids to start thinking about multiplication in a developmental way while building strong number sense and operational skills. Each slide contains scattered counters, which are then put into neat rows (making...
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Lesson Plan
Curated OER

Study Buddies: Relating Multiplication And Division

For Teachers 4th - 5th
These acitivities are designed for two! With a partner, problem solve and calculate the answers to fifteen word problems or mathematical equations. Scaffolding and coaching are included, and as an extension learners are prompted to...
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Lesson Plan
Curated OER

Human Coordinate Plane: An Array of Desks

For Teachers 4th - 8th
Use a kinesthetic activity to elucidate ordered pairs and coordinate planes. Arrange desks in a square array and distribute to learners cards with ordered pairs based on the locations of their seats. By having various groups of learners...
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Worksheet
Curated OER

Use Arrays for Multiplication

For Students 2nd - 4th
In this multiplication worksheet, students practice their skills with multiplication using arrays. Students look at the arrays for each of the eight problems and write two different multiplication problems.
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Lesson Planet Article
Curated OER

Multiplication Using Arrays, Number Lines, and Repeated Additions

For Teachers 2nd - 4th
An educational article can be as useful a tool as a good lesson. This article focuses on how one can use arrays, repeated addition, and number lines to reinforce a deeper understanding of multiplication. Links to 5 different worksheets...
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Worksheet
Curated OER

K6 Math.com How Many?

For Students Pre-K - 1st
For this counting worksheet, students will solve ten problems where they count the number of items pictured. Students will identify the correct number by circling the correct answer. Then students will write the correct answer.
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Worksheet
Curated OER

Summer Counting Worksheet

For Students Pre-K - K
In this counting worksheet, students count sets of four summer objects and circle the correct number according to the directions.
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Worksheet
Curated OER

Multiplication of Whole Numbers

For Students 3rd - 5th
Break up multiplication into more easily conceptualized math operations. Scholars first examine an array of apples and write a multiplication sentence to represent it. Then, they determine which of four sets of addends is equivalent to a...
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Worksheet
Curated OER

Multiplication of Whole Numbers

For Students 3rd - 5th
Rather than simply have your scholars memorize multiplication facts, be sure they understand the process behind each equation. There are four arrays of objects here; mathematicians write a multiplication sentence for each. Next, they...
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Worksheet
Curated OER

Array Picture Cards

For Students 3rd - 7th
Arrays are a visual way to practice multiplication and division. Using one of these twelve array picture cards, learners write a multiplication word problem describing what they see. After also recording a multiplication number sentence,...
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Worksheet
Curated OER

100 Hungry Ants

For Students 2nd - 4th
After hearing the story, One Hundred Angry Ants, learners apply what they have seen to a math challenge. They choose one of three numbers: 12, 24, or 36. Imagining this were the number of ants going to a picnic, they consider how many...
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PPT
Curated OER

Chocolate Bar Math

For Teachers 1st - 4th
How many ways can you use a chocolate bar to engage mathematical reasoning? This slideshow gives you seven to choose from. Part/whole, fractions, counting, and using chocolate bars as arrays are only a few. Note: This is a presentation...