Curated OER
Ratios, Proportions, and Percents - Week 4
In this ratio, proportion and percent worksheet, students solve problems involving ratios and proportions. They identify the percent of increase and decrease, solve ratio problems with proportions, and find sale prices. This two-page...
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Applications, Proportions, and Problem Solving
For this math worksheet, students find the solutions to the problems involving proportions. They also compare the similar triangles.
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Three Bean Salads
In this math worksheet, student compare the recipes for three different salads. Using the concepts of percents and proportions the amount of beans is calculated.
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Introduction To Ratios
Students engage in a lesson plan that is involved with ratios. They use the jigsaw in order to actively take part in the lesson plan. Students play the game with the ratio puzzle pieces. The puzzle is completed while using the follow up...
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Decimal Fractions of a Set
Sixth graders practice problem solving equations of fractions, ratios and proportions, addition and subtraction stage 6 as well as advanced additive. Emphasis is placed on decimal fractions and then they convert fractions to decimals.
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Are You a Golden Ratio?
Students explore the concept of the golden ratio in nature and architectural design. They discuss examples such as petals on a sunflower and the Parthenon. In small groups they take turns measuring their body parts to find a golden ratio.
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Proportionality: The X-Plane Generation
Students meet NASA researchers who describe the relationship between force, energy and motion. They discuss how NASA's experimental X-plane is being tested to make space travel more reliable and show how proportionality and ratios are...
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Cuisenaire Fractions
Students study fractions by comparing rations using Cuisenaire rods. They make predictions, measure lengths using Cuisenaire rods and explain their answers. Next, they discuss the relationship of the different rods in terms of their...
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The Voyage Scale
Students identify how models are powerful tools of exploration and that the sizes of the planets and distances between the planets in the Solar System span a large range. They make a sign for each planet they have created in the lesson...
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Balancing the Scales: Understanding Ratios
Students are introduced to the concept of ratios. In groups, they convert sets of numbers into a ratio. After practicing, they use the ratios and proportions to solve story problems. They also calculate map distances and discover map...
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M&M's
Students use M&M candies to show fractions, percents, and ratios. Individually, they complete a worksheet using their candies and solving equations of greater than or less than. They review their answers and strategies used as a...
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M&M Caper
Students participate in a game with M&M's to be introduced to percents and ratios. Individually, they estimate and record the number of candies they believe the bag holds and the amount of each colored candy. They open the bag and...
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Understanding Fundamental Trigonometric Identities
High schoolers are introduced to the basic trigonometric identities. Using a diagram, they discover why the parts of the unit circle as named as they are and use equations to finalize the Pythagorean trigonometric identities. They also...
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Proportions
Seventh graders participate in a instructional activity that focuses on having them solve different proportions. The instructional activity includes an example that the teacher can work from in order to deliver direct instruction.
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Ratios
Sixth graders investigate the concept of ratios and how they can be used to represent the comparison of quantities. The lesson is taught using a table or graph to compare two categories of data.
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Understanding Radios
Fifth graders explore ratios. Using models and real-world scenarios, they complete tables and generate comparisons. Pupils demonstrate multiple ways of writing ratios and describe the differences between ratios.
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PrimeTime Math: Cliffbound!
Young scholars 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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Introducing Trig
Fifth graders explore the importance of triangles in the real world. They find the unknown side of a right triangle using a scale drawing. Students use Pythagoras' Theorem and other appropriate ratios.
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Springy Legs
Fifth graders measure their body height and the height they can jump. They use these measurements in forms of ratios, fractions and decimals to describe their Springy Legs Factors (SLF). Students compare their SLFs to other people's...
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Jazz and Math: The Beat Goes On
Students collect real data through listening, counting and timing jazz pieces.They use ratios, rates, and proportions to report collected data and demonstrate an understanding of the concepts of rhythm and tempo in music.
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Least Squares Fit Line
Students estimate the least squares fit line for a set of data. They understand error involved in least square fit lines. They solve application problems using least square fit lines.
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Genes Count
Students view a video that reviews Mendelian genetics. They discuss the Hardy-Weinberg Law and use Popsicle sticks to simulate genetic variations and ratios in offspring.
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All About Ratios
Students investigate the use of multiplication and division of whole numbers to solve problems including equivalent ratios and rates.
