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Showing Results for within 25 and rectangular arrays

In this scavenger hunt lesson, students will look for rectangular arrays within their school environment. Whether it is a set of cubbies or windows, students will see that arrays are all around us.

Come "Array" With Us

Let your students learn how to find the area of rectangular objects by doing hands-on activities. Your students will love finding the area of various rectangular objects around the classroom!

Finding the Area of a Rectangle

Start your students on subtracting three-digit numbers with this lesson that breaks the problems down by place values!

Fluently Subtracting within 1000

In this lesson, your students will use repeated addition to find the total number of objects in arrays. This lesson will help your students build upon the skills needed to learn multiplication.


Up, Up, and Array

Teach your students to draw an array using base ten notation to solve multiplication problems with two two-digit factors.

Base Ten Arrays for Multi-Digit Multiplication

Expand on your students' knowledge of base ten numbers with this lesson that introduces the students to the place and value of digits within a number.

What is My Place Value?

BOOM! Have a blast teaching your students how to find and use patterns within the multiplication table to increase fluency with multiplication and build number sense.

Boom, Clap! Patterns in the Multiplication Table

Input some patterns to T-charts in this lesson. Use this lesson about input and output boxes as a precursor to finding patterns within word problems.

Input and Output Boxes

Help your students get creative as they apply multiplication skills to find the area of a community garden of their own design! In this lesson, students will practice finding the area of a rectangle within a real-world context.

Multiplication and Area in the Community Garden

What exactly does the number 97 mean? How about 454? In this lesson, students explore how two-digit numbers are made up of tens and ones. Then they use this understanding to subtract numbers within 1000.

Break It Down

Help your students make sense of the commutative property of multiplication by relating it to arrangements of cars in parking lots.

Parking Lot Multiplication

Use this lesson to introduce composing and decomposing as part of your students’ addition and subtraction toolkits.

Composing and Decomposing

With this activity, students will identify shapes, build 3-D shapes, and practice describing shapes with a partner.

Shape Models

Practice finding unknown numbers in addition equations using fun and silly word problems.

What's That Number?

Finding the area of a rectangle is a key measurement skill to know. In this lesson, your students will enjoy practicing this skill by determining the area of their classroom.   

What Is the Area of Your Classroom?

Students will have a blast as they engage in interactive projects to learn about the characteristics of urban, suburban, and rural communities. This lesson will help them develop both their writing and social-studies skills.


Urban, Suburban, or Rural

Teach your students about keeping on budget with this fun holiday-based lesson. Students will add decimals in a real-life application as they choose gifts for friends and family without breaking the bank.

Giving Gifts: All About Decimals

High order thinking skills are critical skills for students of all ages. In this lesson, your students will create word problems about money.

What's the Problem?

Your students will go bonkers for bingo as they play this baffling multiplication game! Who will get five in a row first?

Multiplication Bingo: Two-Digit Numbers

Use this lesson to review three-digit addition strategies including base-ten drawings, number lines, and the standard algorithm.

Three-Digit Addition Strategies Review

What the character will do next? Designed to teach students the skill of predicting characters’ actions, this lesson guides students to use clues and evidence from the text to make their predictions. Let’s follow those clues!

Look for the Clues

Finding the least common multiple is an essential skill for comparing, adding, and subtracting fractions! This lesson introduces students to this concept in an interactive way.

Clap Counting with Multiples

Don't believe everything you read! Teach students to differentiate between statements of fact and opinion. This important skill will help students become critical and discerning readers.

Is It True?

Teach your students to use tape diagrams to solve equations involving whole numbers and fractions.

Illustrating Fraction and Whole Number Products with Tape Models

Your class will love this outdoor activity that teaches them how to compare the capacity of different containers.

Capacity Comparison

Help your class conquer division with this lesson that has them find the unknown factor using multiplication!

Division: Solving for Unknown Factors

Let's better understand multiplication and division concepts! Use this lesson to help students understand inverse operations between multiplication and division.

Division and Multiplication Relationship

Are your students ready to see narratives from a different perspective? This reading lesson will get students excited about discovering first- and third-person points of view.

Two Points of View

Your students will become junior math detectives as they hunt down the missing side of a rectangle by applying the area formula for rectangles. The only clues they have are the rectangle's area and the measure of one side.

The Case of the Missing Rectangle Side

This tasty lesson will teach second graders about fractions using cookies. 

Cookie Fractions Fun!

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