Curated OER
Create and Solve
In this addition and subtraction worksheet, students solve the problems by adding or subtracting the given numbers in each problem.
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Modeling Basic Operations
Eighth graders engage in a lesson that investigates basic mathematical operations using a number line. They use props for hands on activities of visualizing the solution to a particular problem.
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The Android Factory
Students explore the idea that primitive virtual 3D objects can be reshaped to infinitely original combinations using additive and subtractive methods. They create 3-D objects with a computer which necessitates a cooperation of...
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Nothing To It!
First graders explore the zero property of addition and subtraction through the creation of a class book. Includes an assessment sheet.
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Number Sense
First graders practice rounding 4 digit numbers using place value concepts. For this estimating sums and differences lesson, 1st graders explore clustering, rounding, and front end estimation as methods for rounding decimals.
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Adding Trigonometric Functions
Students identify trigonometric functions. In this trigonometry lesson, students add and subtract trigonometric functions. They add sine and cosine waves and relate it to the real world.
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Domino Adding
Students practice adding numbers to twelve. In this computation lesson, students construct paper domino patterns and play games in which they use the the dots on the dominoes to make addition problems.
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Penny Counting
In this penny counting worksheet, students solve 4 story problems in which three digit numbers are added or subtracted. All problems pertain to pennies; there will be regrouping.
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One More, One Less
In this addition and subtraction worksheet, students solve 6 story problems. All problems relate to either adding or subtracting 1.
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Getting Data from a Table
In this addition and subtraction table activity, students practice deciphering which skill would best help them solve the equation. The tables help illustrate the problem.
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Fact Families
In this fact families worksheet, students solve 6 word problems involving either addition or subtraction. Students use knowledge of fact families to solve each problem.
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Integer Operation Review
Students review integer operations. In this math lesson, students utilize the interactive white board. They drag phrases into the correct spot on a web. They complete problems individually to check the classes work.
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"Slab Box"
Clay is a fun material children of any age can enjoy using. Using rolled slabs of clay, young artists create a slab box. First they design their box, then they roll slabs, score, slip, and construct a box that matches their design plan....
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Decimals: Collaborative Lesson
Students explore mathematics by participating in a group activity. In this number value lesson, students identify the uses for decimals and how to best estimate whole numbers based on decimals and fractions. Students collaborate with...
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Fraction Addition and Subtraction
Students learn skills necessary for adding or subtracting fractions.
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Addition and Subtraction of Signed Numbers
Students explore the concept of adding and subtracting using positive and negative numbers. In this addition and subtraction of signed numbers instructional activity, students use pennies to represent positive and negative numbers....
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Maya Math: Addition and Subtraction
Young scholars examine how ancient Maya counted, and practice addition and subtraction using Maya number glyphs.
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Got These Properties? (Commutative in Addition/Zero in Addition and Subtraction)
Second graders examine the commutative property of addition and the property of zero in addition and subtraction. They complete an asessment worksheet to gain practice reading and working number sentences horizontally and vertically.
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Using Doubles To Subtract
In this subtraction worksheet, 2nd graders use numerals that are doubles. Students complete 10 addition and subtraction problems.
Alabama Learning Exchange
Pizza! Pizza! Pizza!
Fifth graders practice using money in everyday situations. They use their addition and subtraction skills as they work in cooperative groups to solve problems involving decimals.
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Subtracting Integers (II)
In this subtraction worksheet, students complete subtraction problems containing parenthesis, up to 3 digit numbers, and negatives. Students complete 10 problems total.
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How Much Do We Save?
Students use coupons to save. In this saving lesson students practice their addition, multiplication and estimating skills with dollars and cents. They investigate grocery coupons and look for ways to save money.
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Number Line Relay
Students investigate the placements of numbers on a number line. In this algebra lesson, students visualise addition and subtraction on a number line.
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Invitation to Integers
Students find zero pairs and add integers using zero pairs and a number line. They generalize rules for adding integers. Students complete a matching activity on the Internet that helps them practice adding integers.