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Lesson Plan
Curated OER

How to Subtract to 10

For Teachers K - 3rd
Students subtract to 10 through the use of manipulatives. They will use craft sicks and the fact family on their practice pages. They examine how subtracting one always uses the larger number first.
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Lesson Plan
Curated OER

Number Sense and Numeration

For Teachers 6th - 8th
Students add and subtract integers. In this algebra lesson, students discuss number sense as they sort numbers in the correct order. They analyze and label numbers differentiating between rational and irrational numbers.
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Lesson Plan
Curated OER

"Zero-ing" In On Integers

For Teachers 6th - 8th
Students add and subtract integers.  In this integer lesson, students use models to demonstrte the addition and subtraction of integers.  They describe zero pairs and write steps to add and subtract integers. 
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Lesson Plan
Curated OER

Math and Music

For Teachers 1st
First graders play a variety of learning games to reinforce addition and subtraction skills.
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Lesson Plan
Curated OER

Why Is My Bread Fuzzy?

For Teachers 4th - 12th
Students explore the organisms that live on counters or surfaces in the classroom. In this mold experiment, students observe mold in different conditons.  Students record their observations on a worksheet. Students understand how mold...
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Worksheet
Curated OER

Mental Maths

For Teachers 2nd - 4th
In this counting worksheet, students complete 22 fill in the blank problems where they are given a starting number and count by 1's, 2's, and 10's. Next. students answer 12 fill in the blank addition or subtraction problems where they...
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Lesson Plan
Curated OER

Mathematical Roadmaps

For Teachers 2nd
Second graders observe how a sample math problem is solved on the overhead. They work in small groups to develop a strategy for solving another problem using counters as well as a large sheet of paper to write down their explanation of...
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Worksheet
Curated OER

Hands On: Subtract 2-Digit Numbers

For Students 3rd - 4th
In this subtracting 2-digit numbers worksheet, students solve the two-digit subtraction word problems. Students solve six word problems.
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Lesson Plan
Virginia Department of Education

Adding and Subtracting Fractions

For Teachers 4th - 5th Standards
Your learners will enjoy playing a game as a motivator to learning and remembering the adding and subtracting of fractions.
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Lesson Plan
Curated OER

It's a Fact!

For Teachers 2nd
Second graders investigate the concept of addition and subtraction while manipulating a variety of different resources. They focus upon the use of the games in order to keep student engagement. Then students are given the opportunity to...
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Worksheet
Curated OER

Subtract 2 From Numbers 2-5

For Students K
For this subtraction worksheet, students subtract 2 from numbers 2-5. They show the first number in each problem with pictures of counters. They circle and cross out a group of 2 and write how many are left on the blank lines.
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Worksheet
Curated OER

Mental Math Skills

For Students 2nd - 3rd
In this mental math worksheet, students use a number line to count backwards and forwards, add doubles, add and subtract one, and add one-digit numbers. Students solve thirty problems.
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Lesson Plan
Curated OER

Rockin Review

For Teachers 1st
First graders practice math facts by matching a written fact with a math fact card.
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Lesson Plan
Curated OER

Number and Number Relations: Lesson 3

For Teachers 4th
Fourth graders explore the concepts of addition and subtraction. They investigate the relationship between addition and subtraction and determine the operation needed to solve a problem.
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Lesson Plan
Curated OER

Counting Back 1, 2, and 3

For Teachers 2nd - 3rd
In this counting back one, two and three worksheet, students, with a partner, problem solve and answer six word problems and equations.
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Lesson Plan
Curated OER

Number and Number Relations: Lesson 4

For Teachers 4th
Fourth graders investigate the use of addition and subtraction facts in different situations. They examine the relationship between addition and multiplication and determine which operation is needed to solve various problematic situations.
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Worksheet
Curated OER

Take-Away Teasers- Enrichment Worksheet

For Students 1st
In this take-away teasers subtraction enrichment activity, 1st graders write a subtraction number sentence for each of 8 word sentences.
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Lesson Plan
Curated OER

Ten Sly Piranhas: A Counting Story in Reverse

For Teachers 2nd - 3rd
Young scholars solve related addition and subtraction problems. In this addition and subtraction instructional activity, students use the book Ten Sly Piranhas by William Wise as the source of word problems for young scholars to solve.
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Lesson Plan
Curated OER

Egg Count

For Teachers K - 1st
Students practice writing addition and subtraction sentences. They use an activity sheet to count white and browm eggs and solve addition and subtraction problems. Aftterwards, they write addition and subtraction sentences.
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Lesson Plan
Curated OER

Isolating the Variable

For Teachers 9th
Ninth graders investigate how to solve equations with the variable present on both sides. They practice isolating the variable and combining like terms before solving the equation for the variable.
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Lesson Plan
Curated OER

Justifying Answers

For Teachers 1st - 2nd
Students demonstrate how to solve word problems. In this problem solving instructional activity, students use strategies such as drawing pictures, using counters, and making a table to justify how they solved the word problem.
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Lesson Plan
Curated OER

Mental Math

For Teachers 1st - 3rd
Students participate in an online computation game. In this computation lesson, students practice simple computations and use an internet site to review addition and subtraction facts.
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Lesson Plan
Curated OER

A Focus on Mechanical Friction

For Teachers 9th - 12th
High schoolers explore mechanical friction. They perform experiments to observe the direction of mechanical motion and the difference between rolling and sliding friction. Data results on the experiments are recorded and students...
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Lesson Plan
Curated OER

1st Grade Problem Solvers

For Teachers 1st
First graders investigate, represent and solve problems using number facts, operations, and their properties. They solve on-step addition and subtraction number sentences and word problems using concrete materials. Students construct...