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Curated OER
Similarity and Congruence
Students determine that two figures are similar or congruent by
investigating figures that are similar and figures that are congruent. They prove that two figures are similar or congruent by using definitions,
postulates, and theorems.
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Geometry Exploration Basic Trig Functions
Tenth graders solve for missing sides on a triangle using the Pythagorean Theorem. For this geometry lesson, 10th graders are introduced to basic trigonometry functions as they solve problems of right triangles. They discuss the...
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One Size Fits All?
Students describe the differences between an estimate and a guess. They create reasonable estimates based on comparison and activities. Students explain how estimation is helpful in showing the relative size on a scale. They also...
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Whole Numbers
Student are assigned one of the sections on whole numbers. After reviewing the content, they teach their assigned sections to other class mates. They publish their findings on a PowerPoint slide show to use when they teach their section.
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Percents and Money
In this algebra worksheet, students rewrite word problems using algebraic symbols. They solve for the amount of population or money over a period of time. There are 10 questions with an answer key.
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Radian Measure
For this Algebra II/Pre-calculus worksheet, students explore radian measure of an angle and convert between degree and radian measure. The seven page worksheet contains explanation, examples, and nineteen multi-part problems. Answers are...
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Venn Diagrams & Word Problems
Young scholars explore the concept of Venn Diagrams through word problems. In this Venn Diagram lesson plan, students solve word problems about groups of people using Venn Diagrams. Young scholars use survey results about MySpace and...
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Meet the Neighbors: Planets Around Nearby Stars
Students explain why a transiting planet causes a periodic dimming in the light from its parent star. They determine the radius of a planet, and its orbital distance, by analyzing data and manipulating equations. Students compare the...
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From Trees to Paper
Sixth graders investigate logging and the process of paper making. In this forestry lesson, 6th graders analyze pictures of trees being processed into the paper they use everyday. Students solve and create math problems based...
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Who Wants to Carry a Million?
Students, in groups, determine the volume of a box large enough to hold a million dollars. They calculate the dimensions of a bill and the volume of the money.
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Bits and Pieces - More About Percents - Online Manipulatives
In this online percentages worksheet, students access the Library of Virtual Manipulatives web site and open the percentage tool. They use the online tool to complete 8 multi-step questions making graphical representations and finding...
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Initial Fraction Ideas Lesson 7: Overview
Third graders recognize that the larger the denominator of a fraction, the smaller the piece you have. For this fraction lesson, 3rd graders compare fractions and order them from largest to smallest. Students complete an exercise...
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Deep Sea Drilling
Students explore ocean vessels that drill the ocean floor. For this ocean drilling lesson, students watch videos about drilling the ocean floor and discuss. Students get into groups, go outside and use string to mark off the...
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Percent and Percentage Problems
In this Algebra I/Algebra II worksheet, students solve application problems involving percents, percent error, and percent of increase or decrease. The two page worksheet contains a combination of fourteen multiple choice and free...
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Build A Skittles Graph
Learners explore graphing. In this graphing lesson, students sort Skittles candies and use the color groups to create a bar graph. Rubrics and extension activities are provided.
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Fashion Sense and Dollar Wise
Middle schoolers find the cost of an outfit. In this percentages lesson, students look at ads, pick out an outfit, and find the sale price. They create a commercial and complete 4 included worksheets.
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Problem Solving with Diagrams, Part One
In this diagrams worksheet, students use diagrams to help them solve fraction word problems. Students complete 4 problems on this worksheet.
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How Does a Spring Scale Work?
Students create visuals of the effect of a spring scale. In this algebra lesson, students use the navigator to graph the effects created by a spring scale. They draw conclusion from the graph.
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Russian Dolls Investigation
Students measure a set of Russian dolls using the metric system. In this measurement lesson plan, students identify certain relationships between sets of measurements by measuring a set of Russian dolls and presenting their findings to...
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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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Are you in Golden Shape
Students solve and verify the solution for unknown measures. In this geometry lesson plan, students identify the properties of circles. They use the arc, angle and segment relationship to find the missing measures.
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Similar Figures
In this similar figures worksheet, students identify corresponding sides and corresponding angles of given polygons. They identify similar figures. This three-page worksheet contains 18 problems.