Lesson Plan
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Using Ratios

For Teachers 8th - 10th
Students study the Golden Ratio and its relationship to Renaissance artists. After exploring proportions and ratios used by Renaissance artists, students create a mix of ten variations of color paint, and record the ratios of primary...
Lesson Plan
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Balobbyland City Planners

For Teachers 3rd - 5th
Students create a mini city using proportions that fit a model human they construct using tin foil. They plan the city including a library, sports arena, living spaces, parks and businesses. When constructing the paper buildings, they...
Lesson Plan
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Mathematics Within: Algebraic Patterns

For Teachers 7th - 10th
Students comprehend that ratios and fractions are interchangeable. They compare ratios using common denominators, cross multiplication, and intuition. Students find equivalent fractions. They comprehend that equivalent ratios do not...
Lesson Plan
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Measuring the Flagpole

For Teachers 8th - 11th
Studets practice problem solving and comparison of quantities, ratios and prproportions. They develop a plan for determining the height of a flagpole complete with drawings and calculations. In addition, they complete a written...
Lesson Plan
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The Golden Ratio

For Teachers 7th
Seventh graders investigate a ratio found in nature and in numerous pieces of artwork throughout history. The lesson is cross-curricular and builds a sense of appreciation of design for students.
Lesson Plan
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You Are Here

For Teachers 6th - 8th
Middle schoolers determine the relative size and distance of the planets in the solar system. They use ratios in their mathematical calculations to make models of the planets after discussing the relative sizes of the planets. They keep...
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Bag the Beans

For Teachers 3rd - 5th
Young scholars are exposed to a wide array of concrete representations to help develop a foundation for the higher abstract ideas associated with mathematical inquiry. In this instructional activity, students will work with manipulatives...
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Ratio Analysis

For Teachers 11th - Higher Ed
Students define ratios and how they apply in a business context. They practice ratios through an activity that involves financial data.
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Relative Ratios

For Teachers 6th - 8th
Learners discover that proportions are made up of equal ratios each containing the same building blocks. They, using the Internet, apply their knowledge of direct relationships and proportions to problems in planetary science.
Lesson Plan
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Teaching fractions & ratios with M&Ms

For Teachers 3rd - 6th
Students collect data using M&Ms, fill in charts, and write ratios and fractions for each color M&M.
Lesson Plan
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Surface to Volume Ratios

For Teachers 9th - 12th
High schoolers measure the rate of diffusion and to calculate the surface area to volume ratios of varying cell sizes. The lesson is very clearly organized with a useful student worksheet provided. They perform a lab experiment which is...
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Ratios, Mars and the Internet

For Teachers 7th - 9th
Students calculate real ratios that exist between the planets Earth and Mars. After a lecture/demo, students use worksheets and access Internet sites to do their calculations.
Lesson Plan
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Learning About Ratios: A Sandwich Study

For Teachers 4th - 6th
Pupils gain a concrete introduction to the concept of ratios. They demonstrate the ability to create ratios using peanut butter and jelly. They, in groups, construct 6 different sandwiches using different amounts of each food.
Worksheet
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Math Club Worksheet #26

For Students 6th - 8th
In this ratios learning exercise, students complete a word problem dealing with ratios of numbers of boys to girls in the classroom. Students complete 1 problem.
Worksheet
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A Ratio Word Problem

For Students 5th - 6th
For this ratios worksheet, students solve problems and fill in the blanks to make the sentences about the word problem true. Students complete 9 problems total.
Worksheet
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Family Letter - Foreign Currency and Exchange Rates: Proportions and Ratios

For Students 6th - 8th
In this proportions and ratios worksheet, learners solve 6 short answer problems. Students find the foreign currency exchange rates for six countries. Learners express the exchange rate as a proportion or ratio.
Worksheet
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Converting Fractions & Decimals

For Students 4th - 8th
In this fractions and decimals worksheet, students convert fractions, decimals, percents, and ratios. Students complete 10 problems total.
Worksheet
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Ratios

For Students 4th - 8th
In this ratios instructional activity, students are given the percentages and have to provide the ratios, fractions, and decimals for each number. Students complete 40 problems.
Worksheet
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Ratios-Conversions

For Students 4th - 6th
For this ratio worksheet, students complete a set of 4 charts, filling in conversions of ratios, fractions, percents or decimals. A website reference is given for additional activities. 
Worksheet
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Ratios

For Students 4th - 6th
In this ratio worksheet, students provide conversions for sets of ratios in charts, converting to fractions, decimals and percents. A website reference is given for additional resources. 
Worksheet
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Ratios

For Students 5th - 6th
For this ratio worksheet, students complete 4 charts, converting fractions to ratios, percents and decimals. A website reference is included for additional resources.
Worksheet
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Integrated Algebra Practice - A.M.1 #2: Rates

For Students 9th - 12th
In this rates worksheet, students solve 10 multiple choice problems. Students find the unit price of an item to determine the best buy.
Worksheet
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Converting Fractions and Decimals

For Students 5th - 10th
In this conversions learning exercise, students convert fractions, decimals, percents, and ratios. Students complete 10 problems in the chart.
Worksheet
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Converting Fractions and Decimals

For Students 5th - 10th
In this conversions worksheet, students convert fractions, decimals, percents, and ratios. Students complete 10 problems in a chart.