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Showing Results for adding subtracting

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

Fluently Subtracting within 1000

Teach your students to add and subtract fractions with like denominators using a strategy that works for both operations: converting mixed numbers into improper fractions and back again!

Single Strategy for Adding and Subtracting Mixed Numbers

This lesson is designed for fourth graders to practice their skills with the order of operations along with multiplying fractions and adding or subtracting decimals. 

Order of Operations with Fractions and Decimals

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

Students will find angle sums using a baseball diamond diagram.

Adding Angles

In this lesson, students will practice explaining the process of subtracting numbers up to 1,000 using base-ten blocks and peer feedback. Use this lesson on its own or as support to the lesson Fluently Subtracting within 1,000.

Sharing the Subtraction Process

It's as easy as one, two, three...four! Introduce your students to subtracting decimals in the tenth and hundredth place using a four-step process.

Step By Step Decimal Subtraction

Teach your students to subtract mixed numbers with like denominators using the strategy of decomposition. This strategy helps students to manipulate and break down numbers to help them solve tricky subtraction problems. 

Subtracting Mixed Numbers Using the Decomposition Strategy

Empower students to think like mathematicians by having them create word problems related to subtracting mixed numbers. Use this lesson on its own or as support to the lesson Subtracting Mixed Numbers Using the Decomposition Strategy.

Writing Questions for Word Problems

Solve for the sum of two mixed numbers! They will use scaffolds such as fraction models to support the visualization of mixed numbers. This can be used on its own or as support for the lesson Sums for Mixed Numbers and Improper Fractions. 

Adding Like Mixed Numbers

Make the number work for you! Use this lesson to teach your students to add mixed numbers with like denominators using the strategy of decomposition.

Adding Mixed Numbers Using the Decomposition Strategy

Students will create angles by folding construction paper, creating angle addition sentences, and then adding the sum of angles on their models.

Folding for Angles

In this hands on lesson, students create squares with different fraction pieces while building their knowledge of adding fractions with different denominators.

Building Squares

During this lesson, students will learn how to edit their writing. They will edit their writing by adding variety to their sentences. Students will also work on writing sentences that are clearer to the reader.

Sentence Variety

Students will practice mental math and harness their discussion skills through addition problems of like mixed numbers. This lesson may be used on its own or as support for the lesson Adding Mixed Numbers Using the Decomposition Strategy. 

Number Talks with Mixed Numbers Addition

Help students develop compare and contrast skills while they examine multi-digit addition models. This lesson can be used independently or in conjunction with the lesson Addition with Regrouping.

Compare & Contrast Addition Strategies

Get your students comfortable with discussing multiple strategies to solve subtraction problems with this lesson on two- and three-digit subtraction. It may be taught independently or as support for the lesson Subtraction with Regrouping.

Discussing Subtraction Strategies

Fractions are everywhere! In this hands-on lesson, your class will work together in groups to find real-world examples of fractions. As they discover more complicated fractions, students will create their own word problems with them.

Fraction Hunt

Help your students subtract with confidence by sharing two different strategies. Use this lesson to build on students’ understanding of subtraction and to evaluate this key skill.

Subtraction with Regrouping

Practice calculating perimeter with the placement of carnival-themed games with given rectangular dimensions. Your students will use grid paper to determine the location of all the games they choose to make the perfect carnival.

Perimeter of Play

Teach your students to add mixed numbers and improper fractions with the same denominator using the counting up strategy with number lines.

Sums for Mixed Numbers and Improper Fractions

Students often understand the basic conventions of writing, but may need support in incorporating these skills into their work. In this lesson, students will review some of the more common capitalization and punctuation errors and apply their editing skills to real writing.

Editing for Capitalization and Punctuation

Your students will enjoy using the perimeter formula to find the perimeter of their initials! In this lesson, they will write their initials in block letters on graph paper to include an element of art.

What's In A Name? Finding Perimeter

Empower your students with the opportunity to design decimal subtraction problems with a given difference (answer). Use this lesson on its own or as support for the lesson Step By Step Decimal Subtraction.

Writing Decimal Subtraction Problems

Teach your students to find the perimeter of polygons using real world examples. They will make polygon pictures using tangrams and practice finding the perimeters of the polygons in their masterpieces.

Polygon Perimeters with Tantalizing Tangrams!

Walk your young writers through the letter-writing process, including formatting, drafting, and editing. Use the checklist to ensure that all of the important parts of the letter are included and the details are polished.

Drafting, Formatting, and Editing a Letter

Get your students thinking like mathematicians with this lesson that has them crafting questions for multi-step word problems. It may be taught independently or as support for the lesson Multi-Step Word Problems? No Problem!

Writing Questions for Multi-Step Word Problems

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

This lesson helps students break down the different components of a word problem with decimals so that English Learners can succeed in solving them. Use it on its own or as support for the lesson Giving Gifts: All About Decimals.

Decimal Word Problems

Make multiplication a snap with this hands-on math lesson! Your students will learn how to easily multiply large numbers using base-ten blocks and the strategy of breaking apart by place value.


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Showing Results for adding subtracting