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Lesson Plan
Curated OER

The American Flag-Basic Ratios and Proportions

For Teachers 9th - 10th
Students solve problems with ratios and proportions. For this algebra lesson,students apply the concept of ratios and proportions to the real world.
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Lesson Plan
Centre for Innovation in Mathematics Teaching

Ratio and Proportion

For Teachers 6th - 8th
Middle schoolers review the definition and rules for equivalent fractions. Additionally, they are introduced to equivalent ratios. They write examples of ratios from the board, and they come to the board to write the correct equivalent...
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Worksheet
Math Mammoth

Ratios and Proportions

For Students 5th - 6th
For this ratios and proportions worksheet, learners complete several activities that advance their understanding of proportions and ratios. Learners solve six equations and five word problems.
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Worksheet
Raytheon

Ratios and Rates

For Students 6th - 9th
Here is a ratios, rates, and proportions worksheet which invites learners to solve word problems dealing with ratios, rates, and proportions. They complete 26 problems total.
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Lesson Plan
Curated OER

Using Ratios to Taste the Rainbow

For Teachers 9th - 11th
Students solve problems using ratios and proportion. For this algebra lesson, students analyze skittles and their different colors as they apply the properties of ratios and proportions to solve their problems.
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Lesson Plan
Curated OER

Developing the Concept: Proportions

For Teachers 5th - 6th
Young scholars solve problems with proportions. For this proportions lesson, students solve word problems as they learn about how to set up formulas for solving proportions. Young scholars then solve problems using proportions.
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Worksheet
Skills Workshop

Ratio, Scale, and Proportion

For Students 6th - 8th Standards
Converting units is an excellent example of how math relates to our everyday tasks. The resource prompts mathematicians to use baking, cooking, and other daily activities to discover how to make larger quantities of each ratio or recipe.
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Lesson Plan
Mathematics Assessment Project

Classifying Proportion and Non-Proportion Situations

For Teachers 7th Standards
Proportions, proportions, everywhere. Class members complete an assessment task solving problems involving proportionality. They then complete an activity classifying given situations as proportional or non-proportional.
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Interactive
CK-12 Foundation

Percent of a Number: Acid Solution

For Students 6th - 8th Standards
Mathematicians answer five questions about percents, ratios, and proportions with help from an interactive graduated cylinder. Question types include multiple-choice, fill-in-the-blank, and discussion. 
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Lesson Plan
Curated OER

Daily Time Ratios

For Teachers 7th - 9th
Students track and record how much time they spend on each activity. In this spreadsheet lesson, students apply different functions using Microsoft excel to format cells and calculate the sum of their total time spent each day. They...
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Lesson Plan
Curated OER

Proportionality, Ratios and Constant Variation

For Teachers 9th - 11th
Students use Scion Image to estimate the proportion of space images. For this proportion lesson, students investigate the online site of Image of the Orbitor and relate the dimensions and sizes to known sizes.
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Worksheet
Math Mammoth

Problems with Ratios

For Students 7th - 8th
In this math worksheet, students compare four sets of ratios. They solve four proportions. Students use proportions and ratios to solve four word problems.
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Lesson Plan
Curated OER

Proportions

For Teachers 6th - 8th
Students perform mathematical operations to create proportional measurements, after listening to the David Schwartz book, If You Hopped Like a Frog.
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Lesson Plan
Curated OER

Origami Cube

For Teachers 9th - 10th
Young scholars compare two lengths using the area of a square. In this geometry lesson, students solve problems using ratio and proportion of the two shapes. They solve equations by taking the square root of both sides.
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Lesson Plan
Curated OER

Proportional Segments Between Parallel Lines

For Teachers 9th - 12th
Pupils identify similar triangles.  In this proportional segments lesson, students identify corresponding sides, set up ratios, and find the length of the missing side of a triangle.  They use the parallel/proportionality conjecture to...
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Assessment
Noyce Foundation

Cereal

For Teachers 6th - 7th Standards
Find the best protein-packed cereal. The short assessment task covers equivalent and comparing ratios within a context. Pupils determine the cereal with the highest ratio of protein. A rubric helps teachers with point allotments for...
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Assessment
Los Angeles County Office of Education

Assessment for the California Mathematics Standards Grade 7

For Students 6th - 8th Standards
In need of an all-inclusive seventh grade math resource? Packed full of the topics necessary for Pre-Algebra the packet includes practice problems with different difficulty levels. It works great for any supplemental use needed in the...
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Lesson Plan
National Research Center for Career and Technical Education

Salads

For Teachers 9th - 12th
Lettuce talk for a moment about your culinary scholars; do they have what it takes to create a great salad? Show them the finer points of salad preparation with a career and technology lesson that combines direct instruction, creativity,...
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Lesson Plan
Curated OER

Place Value Practice (Tenths and Hundredths)

For Teachers 5th - 7th
Math scholars recognize place value and practice writing numbers in different forms, such as expanded notation, decimals, and improper fractions. They complete exercises that include creating models for fractions and decimals and...
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Worksheet
Central New Mexico Community College

Percent Word Problems

For Students 5th - 8th Standards
Take young mathematicians' understanding of percents into the real world with this series of word problems. Involving a variety of contexts from calculating scores on math tests and savings account interest, to determining sale prices...
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Lesson Plan
Curated OER

Similarity

For Teachers 8th
Eighth graders understand that proportional enlargement of shapes doesn't change the angles of those shapes. In this similarity lesson, 8th graders complete exercises to create enlargements of shapes and understand similar shapes.
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Assessment
Noyce Foundation

Cat Food

For Teachers 6th - 7th Standards
Determine the right mix of cans of cat food. The resource consists of an assessment task to determine the cost to feed two cats for a specific number of days and requires scholars to interpret remainders within a context. The resource...
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App
Mojang

Minecraft – Pocket Edition

For Students 4th - 12th
You don't have to be a Minecraft wiz to know that this app has great playability for your learners! As afterschool programs and classroom projects around the world demonstrate, this game goes well beyond placing blocks and traditional...
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Worksheet
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Curated OER

Practice: Word Problems

For Students 5th - 7th Standards
Congratulations, you've just hit the word problem jackpot! Covering an incredible range of topics from integers and fractions, to percents, geometry, and much more, this collection of worksheets will keep young mathematicians busy...