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Lesson Plan
Curated OER

A Sum of Functions

For Teachers 9th - 12th Standards
Collaborative learners will see the geometric addition of functions by graphing the sum of two graphed curves on the same coordinate plane. This task then naturally flows into giving learners the algebraic representation of the curves...
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Study Guide
Curated OER

Understanding Variables

For Teachers 9th - 10th
Students solve linear equations and identify the unknown. In this algebra lesson, students define a variable and use addition, subtraction, multiplication and division to solve. They change the equation depending on the value of the...
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Worksheet
Curated OER

Organizing and Understanding Data - Independent Practice

For Students 1st
Provide your first graders with an opportunity for independent practice organizing and understanding data. The ten story prompts on this three-page worksheet asks learners to solve problems involving concepts of the total number of...
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Interactive
CK-12 Foundation

Addition of Integers: Polka Dots

For Students 7th Standards
What happens when you add negative and positive integers to one another? Do you add or subtract, and will the answer be positive or negative? Young mathematicians use blue and red polka dots to determine the value of an expression that...
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Activity
Curated OER

Domino Addition

For Teachers 1st - 2nd Standards
Hands-on learning in math is essential to all learners, especially youngsters. In a math learning activity, young mathematicians use dominoes in order to discover the commutative property of addition. Fact families and doubles facts can...
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Worksheet
Curated OER

Addition A

For Students 2nd - 3rd Standards
Learners solve twenty five addition problems involving a series of one digit numbers. This worksheet would be a quick and easy way to review this topic.
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Activity
Illustrative Mathematics

Building toward fluency

For Teachers 2nd - 3rd Standards
Here is a great learning task that focuses on the development of areas in computational fluency including strategies in mental math. Young learners are guided through a list of addition expressions that help them visually understand the...
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Lesson Plan
BBC

Simple Addition and Subtraction

For Teachers K - 1st
Here is a wonderful lesson plan designed for young mathematicians. In it, they employ simple addition and subtraction strategies in order to solve word problems. There are some excellent activity sheets embedded in the plan to make the...
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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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Lesson Plan
Illustrative Mathematics

1.OA, NBT, The Very Hungry Caterpillar

For Teachers Pre-K - 2nd Standards
First graders are exposed to addition of three whole numbers in a math activity centered around Eric Carle's, The Very Hungry Caterpillar. As the teacher reads, young mathematicians use counters and ten-frames to symbolize the number of...
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Lesson Plan
Curated OER

Famous Public Properties

For Teachers 6th - 8th
What can a middle schooler do in 90 minutes? He can practice using the commutative, associative and distributive properties of addition and multiplication. He can also simplify expressions using the commutative, associative and...
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Lesson Plan
Illustrative Mathematics

Comparing Freezing Points

For Teachers 6th - 7th Standards
Subtracting negative numbers can be confusing to your middle schoolers. Here, they are able to draw a number line and put their answer in sentence form to check their understanding of negative numbers. 
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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...
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Lesson Plan
Curated OER

The Sum of Our Integer Intelligences

For Teachers 7th - 8th
Young mathematicians explore integers. They review adding integers through engaging in mathematical labs. Each lab station is designed to reflect one of the multiple intelligences. Resources for all activities are provided.
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Worksheet
Curated OER

Fact Families

For Students 1st - 2nd
These fact families need to be completed. Scholars use addition and subtraction to complete four number sentences for each set of three numbers. The sentences are all part of the number set's fact family, and demonstrate the commutative...
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Worksheet
DK Publishing

Real-Life Problems: Miles, Pounds, and More

For Students 4th - 5th Standards
Give young arithmeticians an applicable way to use their addition and subtraction skills with these five word problems. Each one presents a scenario requiring they add or subtract numbers with units (money, distance, weight,...
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PPT
Curated OER

Basic Addition

For Teachers 1st - 2nd
Introduce addition to your class with this handy and well-thought-out presentation. Addition is defined and then shown in four different examples. Images, a story problem, numeric, and number line variations of the same problem are all...
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Lesson Plan
Illustrative Mathematics

Sugar in Six Cans of Soda

For Teachers 3rd - 5th Standards
Understanding how to multiply a whole number by a fraction is the key concept. Young mathematicians create a visual model of this real-world example and find the solution. Extensions are possible for making this an even richer activity....
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Lesson Plan
Math Solutions

Race to 20

For Teachers K - 2nd Standards
And they're off! Working in pairs, young mathematicians roll dice to see who can fill in their double ten-frames first. When students finally fill in their arrays, they create addition number sentences that represent their rolls, helping...
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Worksheet
Curated OER

Addition Practice

For Students K - 1st
Give your mathematicians a leg up on simple addition using this worksheet with visual aids. Similar to counting cubes, each single-digit addend is accompanied by a corresponding number of colored squares. The two colors are joined where...
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Lesson Plan
PBS

Adding Integers

For Teachers 6th - 7th Standards
Your sixth and seventh graders deepen their understanding of a number line and adding integers in this concrete, hands-on activity. Learners play "Warehouse Puzzle" and then discuss their game strategies and the characteristics...
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Lesson Plan
EngageNY

One-Step Equations—Addition and Subtraction

For Teachers 6th Standards
Just one step is all you need to find success in solving equations. The 27th installment in a series of 36 teaches how to solve one-step equations involving addition and subtraction. Tape diagrams help future mathematicians in this task.
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Worksheet
Helping with Math

Addition: Number Bonds to 20

For Students 1st - 3rd Standards
Pupils fill in the missing addend to an addition problem that adds up to 20. This number could be a one-digit or two-digit number. They complete a total of  41 missing addend problems. Answers are available.
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Worksheet
Curated OER

Real-Life Problems

For Students 1st - 3rd Standards
There's a party going on! Learners examine an image of a birthday party and answer 10 analysis questions. They employ a variety of math skills including telling time, days of the week, division, subtraction, multiplication, addition,...