Curated OER
How Does Your (Coral) Garden Grow?
Analyze and graph oxygen isotope ratios in coral samples in relation to the distance from the outer skeleton edge. Compare the data to the mean monthly water temperatures. Uncover whether or not there is any correlation. In addition to...
Curated OER
Variations on a Human Face Lab
Ninth graders gain an application level understanding of probability, symmetry, and ratios and rates that exists in one's everyday environment relative to human genetics.
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Deric's Blotto
Students solve the handshake problem and investigate triangular numbers. In this geometry lesson, students investigate Blotto games as they apply concepts of triangles and geometric theorems.
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Proportional Problems 1
Eighth graders explore representing fractions as ratios and proportions. They model proportions through the use of blocks, LEGO gears and activities with bicycle gears and pedals. Students work with bicycle gear boxes to observe and...
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Proportions a/b=c/d
Students calculate distance and proportion of objects. In this algebra lesson, students define proportion and how it is used in math. They solve the problem through guided instruction.
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PrimeTime Math: Cliffbound!
Students are involved in a cooperative learning environment that analyzes fractions, ratios to time and distance, equivalent fractions and numerical relationships and expressions in quantitative problems. They take notes, relate...
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Playing with Money (From the Other Point of View)
Students explore exchange rates. They identify the units of currency of a number of countries. Students convert money amounts accurately. They graph currency fluctuations and interpret graphs.
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Math: "Scales"
Third graders investigate ratios and rates. In this third grade mathematics lesson, 3rd graders identify equal ratios and rate and test for proportionality. This lesson is created to be use in conjunctions with a particular...
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Standard Envelope Sizes
Students measure the length and width of various sizes of envelopes. After comparing the envelopes, they explore the ratios, percentages, and rates. Students discuss postal rates and compare the cost of mailing items, delivery times, and...
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Atlatl Lessons Grade 4-12
Students experiment with velocity, ratios, and rates. In this data management lesson, students throw a dart with and without using an atlatl and collect and record various data. Students construct ratios based on the data and determine...
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Algebraic Translations
For this algebraic translations worksheet, 7th graders solve 10 different problems related to various algebraic translations. First, they determine the sum of two consecutive numbers. Then, students determine the rates at which two...
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Currency Exchange
Students investigate the currency exchange rate. In this middle school mathematics instructional activity, student use proportions to exchange between the U.S. dollar and the euro. Students come up with a product they would...
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Atlatl Lessons for Grade 8
Eighth graders explore the weapons of the Aboriginal people. In this eight grade math/science lesson, 8th graders collect and analyze data regarding the speed and distance of a dart thrown with an atlatl. Students choose the...
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Currency
Students investigate currency and exchange rates. In the middle school mathematics lesson, students use ratio and proportion to convert from one type of currency to another. Students solve problems involving currency exchange.
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Problem Solving With Multiplication and Division-Pre Test
In this pre test problem solving worksheet, students complete 10 multiple choice problems using multiplication and division. Students may click on a link to view correct answers.
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Problem Solving with Multiplication and Division
In this problem solving with multiplication and division instructional activity, students interactively answer 10 multiple choice questions, then click to check their answers.
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A Blast From The Past
Students investigate ratio and proportion as they solve problems. In this algebra lesson, students calculate the percent increase on salaries and convert between decimals and percents to calculate. They rate job positions from 1936...
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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.
Illustrative Mathematics
Voting for Two, Variation 3
After calculating election votes, your learners must determine how many votes the winner, John, got above 50%. This multi-step problem encourages them to think in a deeper way about what the question is asking them to find. Use with...
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Applications Involving Quadratic Equations
In this algebra worksheet, learners solve 6 word problems. Problems include the necessary equations. Students solve 5 formulas by isolating the indicated variable.
Illustrative Mathematics
Robot Races
Analyze data on a graph to answer three questions after a robot race. Learners practice comparing ratios and reading points on a graph. Answers may vary on the last question based on accuracy of graphing. Use the lesson along with...
Curated OER
Developing the Concept: Proportions
Students solve problems with proportions. In this proportions instructional activity, students solve word problems as they learn about how to set up formulas for solving proportions. Students then solve problems using proportions.
Helping with Math
Ratio and Proportion: Rates
Unit rates are introduced to your math minors on this printable worksheet, complete with answers. There are only three problems: the first involves biking speeds, the second the cost of bracelets, and the third the cost of apples....
Curated OER
Family Letter and Activity: Cars, Trucks and Percents
In this math worksheet, students will take home a letter to their parents explaining that they are studying Chapter 10: Ratio, Proportion and Percent. Then students will complete a homework activity in which they ask family and friends...
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