Interactive
Scholastic

Study Jams! Addition with Regrouping

For Students 2nd - 4th Standards
Zoe needs to back up her music collection, but do her friends have enough space on their computers to help? Find out as you teach your class how to add two- and three-digit numbers with regrouping. Place value is emphasized as both the...
Lesson Plan
Illustrative Mathematics

Many Ways to Do Addition

For Teachers Pre-K - 1st Standards
A great aspect of teaching math is that children have the freedom to solve problems using a variety of different strategies. The focus of this activity is for young mathematicians to become aware of many ways of answering addition...
Lesson Plan
New Zealand Ministry of Education

Addition and Subtraction Pick n Mix

For Teachers 2nd - 4th Standards
Teach your class how to mentally solve whole number addition and subtraction problems using compensation from tidy numbers including equal additions. They use appropriate recording techniques and predict the usefulness of strategies for...
Lesson Plan
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Curated OER

Using Counting-on Strategy for Purchasing

For Teachers 9th - Higher Ed
Intended for learners with autism and developmental disabilities, this lesson uses the strategy of counting-on to enhance independent shopping skills. Learners will practice counting on to the next dollar value in order to purchase items...
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....
Worksheet
Curated OER

Addition

For Students 1st - 2nd
In this addition activity, students enhance their simple addition skills using addition strategies to solve the two worksheets of addition problems.
Activity
Collaborative Learning Project

Four in a Row Addition and Subtraction

For Teachers 1st - 3rd Standards
Scroll down to find four fun addition and subtraction partner game boards, complete with endless opportunities for practice with numbers 0-38. Kids choose numbers from a number box and, depending on the game, either find the sum or the...
Lesson Plan
Illustrative Mathematics

What’s Missing?

For Teachers Pre-K - 1st Standards
Now you see them, now you don't! This fun peek-a-boo activity engages young mathematicians in developing their ability to compose and decompose numbers. After being presented with a series of counters, children close their eyes while the...
Lesson Plan
Illustrative Mathematics

Christina's Candies

For Teachers Pre-K - 1st Standards
Help Christina figure out how many chocolate and lemon candies she has with a lesson on decomposing numbers. When presenting this context to the class, the teacher chooses the total number of candies and the number that are chocolate,...
Worksheet
Scholastic

Look for Easy Numbers for E-Z Addition

For Students 2nd - 4th Standards
All kids learn differently. For some, mental math is the best and most efficient way to add a series of numbers. After viewing a few sample problems, learners find ways to add numbers to 10 before adding them all together, and then write...
Lesson Plan
Curated OER

Butterfly Addition: Color by Numbers

For Teachers K - 1st
Children learning to add numbers up to 11 develop the strategy of using the larger number as the first addend and counting on from there to find a sum. They define addition and review the meaning of the plus (+) symbol. To practice, they...
Activity
Pedago Net

Math Games Using Dice and Cards to Promote Mental Strategies

For Teachers 3rd - 5th
Develop mental math skills using these fun partner games. Covering basic operations, each one offers differentiation options, extension ideas, and clear directions. Dice or cards is all you'll need to keep kids' attention as they...
Unit Plan
Mathematics Vision Project

Module 3: Numbers and Operations

For Students 10th - 12th Standards
Bring some concrete reasoning to the skills of multiplying and combining terms. Using various strategies, the six activities in the module provide practice for the skills of adding, subtracting, multiplying, and diving polynomials. The...
Lesson Plan
Scholastic

Adding and Subtracting Ten

For Teachers K - 2nd Standards
Developing fluency with basic addition and subtraction is fundamental to the success of all young mathematicians. This four-day lesson series begins with learners using ten-frames and hundreds charts to recognize patterns when adding and...
Worksheet
Scholastic

Guess and Check

For Students 2nd - 4th Standards
How can you find the solution to an addition or subtraction problem by guessing? Practice the guess-and-check strategy with a fun math activity based on Ms. Squid's ink mess on the homework. Kids determine which number is covered by the...
Lesson Plan
EngageNY

Analyzing Decisions and Strategies Using Probability 1

For Teachers 11th - 12th Standards
Learn how to increase the probability of success. The 19th installment of a 21-part module teaches future mathematicians how to use probability to analyze decisions. They determine strategies to maximize the chances of a desired outcome.
Unit Plan
Buffalo State

Adding and Subtracting Positive and Negative Integers

For Teachers 7th
A well-rounded unit on positive and negative integers is a great addition to your middle school math class. Learners work through five activities, each focused on a different skill, before playing a Game of Life to practice the...
Lesson Plan
Curated OER

Finding Addition Patterns

For Teachers Pre-K - 2nd
Students practice finding the sums of two-one digit numbers. In this addition lesson plan, students also record facts onto an addition chart.
Lesson Plan
K20 LEARN

Baking Cupcakes!: Fractions

For Teachers 4th - 5th Standards
Following an engaging video, mathematicians solve a word problem about baking cupcakes using fractions. Scholars practice different problem-solving strategies, then find different ingredient amounts for their recipes. Pupils solve a...
Lesson Plan
Curated OER

M & M Addition

For Teachers K - 1st
Eat your math manipulatives, are you serious? Yup, Learners listen to the story The M & M's Addition book, add single digit numbers to reach sums up to six, and demonstrate addition and subtraction number combinations using several...
Lesson Plan
Illustrative Mathematics

Running Around a Track II

For Teachers 9th - 11th Standards
On your mark, get set, GO! The class sprints toward the conclusions in a race analysis activity. The staggered start of the 400-m foot race is taken apart in detail, and then learners step back and develop some overall race strategy...
Unit Plan
Curated OER

Multiplication & Division

For Teachers 4th - 5th Standards
Helpful for building a multiplication unit that focuses on different strategies. With explanations about repeated addition and subtraction as foundations for multiplication, scaling, summaries of progression, and basic multiplication and...
Lesson Plan
Curated OER

Addition and Subtraction

For Teachers 2nd - 3rd
Students develop their own strategies to solve basic addition and subtraction facts. In this addition and subtraction lesson plan, students use strategies they already know and new ones to solve problems.
Lesson Plan
Curated OER

Comparing Apples With Apples 1

For Teachers 4th - 6th
Elementary schoolers observe and demonstrate how to add and subtract fractions with like denominators. They observe the teacher model a variety of fraction addition and subtraction problems and use fraction strips to complete a worksheet.