Curated OER
Algebra Using Proportions
In this algebra using proportions worksheet, 10th graders solve 14 various types of problems by applying algebra methods to geometry. First, they solve each of 8 proportions using cross products. Then, students use the triangle shown and...
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My Test Book: Percents
In this online interactive math skills worksheet, students solve 10 multiple choice math problems regarding percents. Students may submit their answers to be scored.
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Changing Units of Measure
In 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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Overpopulation
Young scholars examine population growth and how it impacts our environment. In this population instructional activity students identify the causes and consequences of overpopulation.
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7 Ways for Gen Xers to Help Secure Their Retirement
Students explore the concept of budgeting. In this budgeting lesson, students read an article about preparing for retirement. Students create a budget of household expenses during retirement and create a savings plan for that budget.
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How to Catch a Fish
Students conduct an experiment to demonstrate the effects of different fishing methods. In this commercial fishing lesson students create posters and public announcements to share their information.
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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...
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Percentages: Decimals To Percent
In this percentages worksheet, students write twelve decimals as percentages and twelve percentages as decimals. Students check their answers with the key when they are finished.
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Percentages: Fractions To Percent
For this percentages worksheet, students write eighteen fractions as percentages. Students problem solve each fraction as a percentage.
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Solving Percent Problems with Proportions
Seventh graders explore the concept of percent problems. In this percent problem lesson, 7th graders use proportion equations to solve percent problems. Students find percentages of numbers and use proportions to determine percents in...
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Every Breath You Take
Middle schoolers explore the nature of the air we breathe by observing petri dishes that have accumulated particulate matter from the atmosphere. Students make mathematical calculations and inferences about the effect of this matter on...
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Tree Bagging
High schoolers bag trees to determine the mass of the water given off in the evapotranspiration process.
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Date a Rock!
High schoolers figure the number of half-lives since the sample solidified, and therefore the "age" of the sample rocks.
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SAT grid ins practice test 02
In this secondary mathematics activity, students solve problems similar to those on the SAT test. The interactive activity is one page and contains ten problems. Answers are not provided.
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How Cool Is Your Environment?
Students study the formulas for calculating heat energy and how to convert Celsius to Fahrenheit. They apply the formulas on a worksheet.
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Pumped Up Gas Prices
Young scholars spend one month keeping track of the mileage and gasoline amounts they or their family has used. Information is entered into a spreadsheet to help calculate the average gas prices over time.
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Magic Mountain Coaster Computation
Learners use the Internet to do research on the roller coasters at Magic Mountain Amusement Park. They must use mathematical formulas to calculate the highest and fastest coaster at the park.
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Latex Helium Balloons: Any Alternatives?
Students discuss the latex balloon release controversy and review suggested alternatives to the latex balloon.
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Geometry - Measurement
Students review the procedure for determining appropriate types of measurements for given situations and measurement conversions. They figure perimeter, area, and volume of 2 and 3 dimensional objects.
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Stars and Stripes
Students design a United States flag using reasoning. They describe their design to make it easy for it to be duplicated. They share their designs with the class.
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Hit the Slopes
Eighth graders work in one collaborative group to understand how ordered pairs are represented and graphed on a coordinate plane. They identify points on the coordinate plane and communicate their understanding of ordered pairs and their...
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MOBILITY, Traveling Lightly: What’s My Footprint?
Students calculate their carbon footprint. In this environmental technology lesson, students listen to a lecture on climate change. Students brainstorm solutions to reduce environmental impact based on travel options. Students calculate...
PBS
Pbs: The Lowdown: Exploring Changing Obesity Rates Through Ratios and Graphs
In these KQED Lowdown infographics, explore how adult obesity rates in the United States, as measured by body mass index (BMI), have dramatically changed in the past half-century. A circular graph and a pictograph depict data by decade,...
Other
Nearpod: Rates & Ratios
In this activity on ratios, 7th graders explore how ratios can be used to demonstrate rates by exploring proportional relationships.
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