Curated OER
Radioactivity
In this radioactivity worksheet, students write the mass number and atomic number for the missing element in the reactions. Students identify the isotope that is more stable and determine the half-life of the isotope. This worksheet has...
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The Laws of Sines and Cosines Made Simple!
Students explore the concept of law of sines and cosines. In this law of sines and cosines lesson, students construct a triangle tool from card stock and markers. Students use their triangle tool to aid in solving problems involving...
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Probability
Students solve probability problems. In this fraction and probability lesson plan, students review how to simplify fractions and learn how to express probability as a fraction.
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Word Proportions
In this word proportions worksheet, students complete equivalent proportions to have the number equal to another form. Students complete 10 problems.
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Initial Fraction Ideas Lesson 19: Overview
Young scholars read different scenarios and discuss how to add fractions. in this addition of fractions lesson plan, students learn how to add unlike fractions and practice 4 problems.
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Australian Currency
Students investigate currency and exchange rates. In the middle school mathematics lesson, students use ratio and proportion to convert from Australian currency to the U.S. dollar and vice verse. Students create their own currency and...
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Rational Functions and Their Graphs
In this Algebra II instructional activity, 11th graders examine the graphs of rational functions, identifying the points of discontinuity and the vertical and horizontal asymptotes. The three page instructional activity contains...
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Probability
In this Algebra II worksheet, 11th graders compare and contrast experimental probability and theoretical probability. The two page worksheet contains explanation of topic, worked examples, and seven practice problems. Answers are not...
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Changing Units of Measure
For this algebra worksheet, students convert between units. They write expressions and simplify them. There are 4 problems with an answer key.
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Why We Study Trigonometry
Students investigate the different properties of trigonometry. In this precalculus lesson, students find the six different identities of trigonometric ratios. They relate the ratios to that of a right triangle and apply it to real life...
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Two Terrains
Students compare two cell phone providers and relate those concepts to motion. In this algebra lesson, students identify the unknown in a problem using variables. They calculate the velocity, motion and displacement of different objects.
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Cut It Out!
Students calculate the surface area of polygons. For this geometry lesson, students use spacial reasoning to find the answer to their problem. They analyze solids and create formulas to estimate the measurements of the area.
Noyce Foundation
Snail Pace
Slow and steady wins the race? In the assessment task, scholars calculate the rates at which different snails travel in order to find the fastest snail. Hopefully, your class will move much more quickly in finishing the task!
Virginia Department of Education
Relationships Round Robin
Mathematics is all about patterns. Young mathematicians analyze geometric patterns to write algebraic expressions. They use the expressions to predict future stages of the patterns.
Virginia Department of Education
Rational Speed Matching
Ready, set, go! Individuals practice converting rational numbers between fractions, decimals, and percents. A speed game has teams match the three forms of rational numbers on a number line.
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Measuring Speed in the Universe
In this measuring speed in the universe instructional activity, students use photographs of 3 astronomical phenomena including supernova explosions, coronal mass ejections and solar flare shock waves to find how fast they move. The...
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High School Examination: Mathematics B
In this high school examination worksheet, 12th graders solve problems dealing with parabolas, coordinates, probability, dialations, intervals, and trignomeric ratios. This worksheet is designed as a end of course examination. This...
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Proportions in Stories
Students solve problems dealing with ratios and proportions. In this algebra lesson, students rewrite word problems using equations and symbols. They correctly convert between percents and decimals.
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What is a Rate?
In this rate worksheet, students read about rates, view an example problem and determine whether ratios shown are rates, determine if rates are unit rates and complete a word problem.
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School Population
In this math learning exercise, students solve the problem of creating ratios for the school population. There is an example on page 1.
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Tangent
For this tangent worksheet, 10th graders solve 10 different problems that include various tangent lines. They find the value of x using the tangent of each given angle of various triangles illustrated. Then, students identify and define...
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Probability
In this probability worksheet, 8th graders solve 10 different problems that include determining various events of probability. First, they determine the odds of an event given the ratio. Then, students use a fraction to express the...
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Area of Triangle Using Trigonometry
In this trigonometry worksheet, learners determine the area of triangles using the trigonometry ratios of sine, cosine, and tangent. This one-page worksheet contains ten problems.
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Trigonometric Identities
In this trigonometry worksheet, students derive the 6 different trigonometric identities. They use the identities to solve problems by multiplication of trig ratios. There are 102 trig questions to be solved.
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