Illustrative Mathematics
Archimedes and the King's Crown
Learners will shout "Eureka!" in this quick but deep activity replicating the famous bathtub experiment of Archimedes. Given the scenario of a king with a suspected fake crown, young investigators develop formulas using density to...
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Percent of a Quantity
Visualize methods of finding percents. Classmates find a percent of a quantity using two methods including a visual model in the 26th lesson in a series of 29. By the end of the lesson, scholars find percents given a part and the whole...
Curated OER
Selling Price
Students work independently to complete a problem solving activity that involves percent. This lesson is designed to be used as an assessment following a unit on percents. Students are presented with a problem involving a store that is...
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Scaling Down Art
Students change the scale of a work of art using ratios, percentages, and proportions. While this is technically an art lesson, there is quite a bit of mathematics involved in converting to the correct scale.
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A Fraction of the Possibilities
Students review the conversion of fractions to decimals, develop strategies to compare fractions perform complex calculations using ratio techniques similar to the construction of fractions.
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Bits and Pieces - More About Percents - Online Manipulatives
In this online percentages instructional activity, 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...
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Finding the Area Under A Curve with Random Probability
Students explore the concept of area under a curve. In this area under a curve lesson, students find the area under a curve using the Monte Carlo method using random points and probability. Students calculate the area under the same...
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Percent Notation
In this algebra worksheet, learners divide circles into equal portions as they explore percents and decimals. They convert between decimals and fractions using ratio and proportion. There are 8 questions.
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Race and Gender in the Media
Students analyze race and gender in the media. In this algebra lesson, students apply their knowledge of percents and ratios to determine the representation of race and gender in the media. They discuss and graph their data.
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Fashion Sense and Dollar Wise
Students work in groups to show understanding of the relationship between fractions, decimals, percentages, and the application of ratios and proportions. In this decimals, fractions, and percents lesson, students use real life consumer...
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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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Baseball Relationships - Using Scatter Plots
Young scholars use graphing calculators to create scatter plots of given baseball data. They also determine percentages and ratios, slope, y-intercepts, etc. all using baseball data and statistics.
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Statistical Drug Abuse and Adolescents in the U.S.A.
Students examine statistics of teenagers using alcohol and marijuana. In groups, they brainstorm the reasons why they believe usage is higher than in years past. As a class, they role-play different roles in scenerios to help them...
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How Does Chance Influence Inheritance?
Students complete a lab based on how chance affects which genes appear in gametes as in Mendel's Law of Segregation. They review the theories, vocabulary words, and historical background of Gregor Mendel's work with pea plants. They...
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Taste the Rainbow
Students practice estimating and graphing by utilizing Skittles. In this statistics lesson, students complete worksheets based on the likelihood of a certain color of skittle coming out of the bag. Students create a graph...
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Mathematics In You
Students construct ratios using the hand as data. They use examples of cortical and trabecular bone found in the long bones to measure circumference, diameter, length, and weight of long bones. They perform computations using growth...
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Finding the Percent of a Number
In this mathematics worksheet, 6th graders find the percents of various numbers. They set up the problem, estimate, and write their response. Students also compare their answers to their estimates for each problem.
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Batting the Unknown
Learners use batting averages to provide a measure of a player's past success. They use Algebra to calculate required performance to improve the average. Students compare baseball batting statistics early in the season and late in the...
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Getting Percentible
This unit explores the connections between percentages, decimals, and fractions. It focuses on strategies for solving problems involving percentages and applies these strategies to real life contexts.
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What is Genetics?
In this biology worksheet, 9th graders name two forms of the trait for seed shape observed by Mendel. Then they determine the percentage of the possible types of offspring that have the same genotype as the parents. Students also explain...
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The Stock Market-Tracking and Picking Stocks
Students interpret the stock market. They pick preferable stocks based on price to earnings ratios listed in the quotes. They practice using fractions and decimals to calculate the cost of selling and buying various stocks using...
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Water - Planning for the Future
Students explore and examine the increases and/or decreases for water user groups: irrigation, municipal, manufacturing, steam electric power generation cooling, livestock, and mining. They utilize percentage changes during their...
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Theoretical Probability
In this math worksheet, students investigate the ratio comparing the number of ways an event can occur using theoretical probability.
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Percents Less Than One and Greater Than 100
Sixth graders express numbers as percents greater than 100 and less than one. In this lesson on percents, 6th graders work in groups with real life scenarios to develop an understanding on percentages greater than 100 and less than one....