Curated OER
Special Right Triangles
Students identify the different parts of a right triangle. In this geometry instructional activity, students use the Pythagorean Theorem to identify missing sides and angles of a right triangle. They work with irrational and rational roots.
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Patterns and Pentominoes
Students participate in a class discussion about how pentominoes figure into the plot of "Chasing Vermeer." They then solve pentominoe puzzles and play interactive games. Resource links are provided for the activities and puzzles.
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Math Activity: "Snake"
Fourth graders explore patterns by participating in a class math activity. In this early algebra lesson, 4th graders utilize a die and chart to keep record of a snake game in which students must utilize a math function to solve a problem...
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Percentages and Fractions of Amounts
In this math worksheet, students change percents to fractions on five problems. Students complete a table. Students find a given percent of five numbers. They complete five story problems involving percents.
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Percentages
In this percentages worksheet, students study the information and examples on a one page text. Students then solve 14 problems in which decimals and percentages are converted. Students also convert percentages to fractions.
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Crafty Fractions
Fourth graders study fractions. In this fractions lesson, 4th graders define fraction-related vocabulary words. Students use beads to study fractions. Students draw shapes to study fraction equivalency and brainstorm fractions they use...
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As the Bird Flies
Students investigate the properties of lines and congruent triangle theorems as well as apply geometric properties and relationships to real-world mathematical problems. Given two different scenarios, they examine maps that have been...
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Algebraic Fractions
In this Algebra II activity, 11th graders add, subtract, multiply, and divide algebraic fractions and solve rational equations. The two page activity contains eight problems. Answers are not provided.
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Justice, Is it Fair?
Fifth graders investigate conflict resolution through the study of justice. In this justice lesson, 5th graders are put in scenarios of unfair conditions. Students discuss the unfair situations and their feelings about them....
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Rays and Angles
Students view examples of a ray, opposite rays, collinear rays, angles, and straight angles. They discuss and demonstrate how to use a protractor and complete worksheet problems on rays and angles.
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Inequalities Involving Absolute Value
Pupils solve and graph inequalities involving absolute value. They discuss and identify the basic properties of inequalities, and solve basic examples.
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Substitution into Formulae
For this substituting numbers worksheet, students solve 30 problems in which numbers are substituted into algebraic expressions. This page is intended as an online activity, but may be completed on paper.
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Squares
In this squares activity, 10th graders solve and complete 7 various types of problems. First, they divide a product of one with a square of the other. Then, students find the dimensions of a rectangle that will maximize the area. In...
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Sled Kites and Trigonometry
Students study the history of kites and their fundamental properties. In this kites lesson students divide into teams and build and fly kites.
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Sports Injury Symptoms & Prevention
Students gain a basic understanding of common symptoms of sporting injuries and how to best prevent sporting injuries. They interpret factors that contribute to personal awareness and their effects on behavior by communicating...
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Working Well With Others
Learners discuss the importance of communicating well with employers, customers and co-workers. A personality profile is completed and students work in groups to discuss various ways to solve disagreements when working with others. ...
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Graphing Integers
Fifth graders explore the math concept of graphing integers. In this graphing integers lesson, 5th graders examine visual examples. Students also practice solving problems that their instructors model.
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Double Serving Lesson Plan
First graders add doubles numbers in number sentences. In this doubles numbers lesson plan, 1st graders list things that come in pairs, create doubles addition sentences, and solve riddles with doubles.
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Rational Expressions and Equations
In this Algebra I/Algebra II worksheet, students reduce, add, subtract, multiply, and divide rational expression. Students also solve rational equations. The one page worksheet contains twenty-six problems. Answers are...
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Math Homework: Fractions
In this fractions worksheet, learners complete true/false questions, find equivalent fractions and use order of operations to solve problems that included exponents.
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Clock Arithmetic and Cryptography
Students perform basic operations in modular (clock) arithmetic. Students encode and decode messages using shift and affine ciphers. Students apply their multiplication, division, addition, and subtraction skills.
Helping with Math
Ratio and Proportion: Writing Ratios (1 of 2)
Here is the first of two printable ratio worksheets. For the first three problems, pupils count the numbers of two different objects and simply write down the ratios. There are then four problems in word form for which they also write...
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"Subtraction Bowling"
Students experience the math concept of subtraction without regrouping. They practice subtraction bowling to work on their basic subtraction skills. Each student demonstrates mastery of the addition and subtraction facts, the meaning of...
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Linear Equations
In this algebra worksheet, student linear equations through addition, subtraction, multiplication and division. They check their work algebraically. There are 26 problems.