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### We found 960 resources with the concept ratios

Lesson Planet: Curated OER

#### Dilations in the Plane

Tenth graders investigate dilations and explore the dilation transformation before investigating the properties of a dilation using Cabri Jr. Students extend the concept of dilatation to the coordinate plane.

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#### SAT Prep: Test 7 Section 5 Part 4

Transitioning between algebra and geometry is no problem for Sal as he deftly solves these practice SAT problems. Mathematicians who have a hard time moving between skill sets will appreciate the way that Sal addresses each new problem...

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#### Lunch Food? Mmmm! Mmmm! Good!

Examine how nutrition plays an important role in our lives by conducting online research and developing lunch menus that satisfy nutritional requirements set up by the United States Department of Agriculture. Students download recipes,...

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#### Are We Golden?

Lead your class on a search for precious bones. Using a presentation, the class investigates the golden ratio in art and nature. Groups of pupils measure specific bones and find the average ratio for the class. To further cement the...

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#### Similar Figures

Use some similar problems to find side lengths. Pupils learn the definition of similar figures and how it relates to corresponding angles and sides. Using the definition, individuals calculate the lengths of missing sides and practice...

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#### Miniature Gulf Coast Project

Scholars show what they know about data collection and analysis with an activity that examines a smaller population of Houghton, Texas. Independently or in pairs, learners identify their research question, gather, graph, and analyze...

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#### Ratio Relations

At this rate, the class will be experts on ratios and rates in no time. A class workbook teaches individuals about ratio language, how to use tables and tape diagrams to find equivalent ratios, and how to solve ratio problems. They then...

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#### Electrical Energy and Solar Module Efficiency

It's much more efficient if everyone knows the relevant terms. Pupils research vocabulary terms related to electric currents to start a unit on solar energy. They then use a multimeter to measure the voltage and current for a solar...

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#### The Clapper

Give a round of applause for completing the task. Scholars watch a video that shows an extremely fast clapper and a timer. The activity requires applying concepts of rates and proportional reasoning to estimate the number of claps in one...

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#### Rope Jumper

Jump at the chance to use the idea of rates. Young mathematicians watch part of a clip of a Japanese TV show where a contestant jumps rope as fast as possible. They use the data for the number of jumps and the number of seconds shown in...

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#### Thumbs on Fire

How fast are those thumbs? Pupils view a short video showing a person typing out a text message in a speed challenge. They use the information they can glean from the video to estimate the number of seconds it will take to completely...

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#### Snack Mix

Create a snacking recipe. Pupils develop a question after watching a video of the making of a snack. Learners come to an estimation of an answer to their question. The teacher provides additional information about the recipe as needed...

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#### Taxi Cabs

Determine the cheapest way to the airport. Pupils read a scenario about trying to get 75 people to the airport using two different sizes of taxis. Learners calculate the number of smaller taxis needed given a number of large taxis and...

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#### Ice Cream

Make sure there is enough ice cream on hand. Learners try to find out how much ice cream to buy for a sports event. Scholars use a pie chart showing the percent of a sample of people who like different flavors of ice cream. Using the...

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#### Ratio Stadium

Bike to master ratio basics. Learners propel their motorbikes around the track by identifying equivalent ratios. Each correct response provides a boost to the bike, while incorrect answers slow it down.

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#### Ratio Blaster

Shoot the equivalence before it gets you. Individuals practice determining equivalent ratios in six levels in an online interactive. Scholars shoot down the invaders before they reach the planet by identifying an equivalent ratio to the...

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#### Ratio Martian

Identify the correct ratios for food. Pupils play a six-level online game to practice identifying ratios. Learners see ratios in several forms mixed in with non-ratio quantities. Individuals click on each ratio to feed the hungry martian...

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#### Expressing One Quantity as a Fraction of Another

It turns out that fractions can be useful after all. Scholars watch a brief video that shows how to express a quantity as a fraction of another. In particular, the video looks at situations where part-to-whole relationships can be...

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#### Ratio Rumble

Develop a potion of ratios. Learners play a matching game to make potions that follow a recipe. Pupils create equivalent ratios to make multiple recipes at a given time. As levels increase, ratios get more difficult, as they include...

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#### Ratey the Math Cat

Find a perfect way to recognize rates. The class first watches a video that emphasizes the word per when referencing a rate. Pupils then use their knowledge to create their own rates via station activities. Finally, individuals use...

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#### How Do I Design a Raised Bed Garden to Accommodate My Plants?

Give plants the best place to grow. Given constraints on plant spacing, pupils design a raised bed garden using graph paper, then calculate the perimeter, surface area, and volume. They use the provided costs of lumber and soil to...

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#### Movie Projector Cost

Small groups analyze the attendance at a movie theater and determine the amount of money made for per show. Team members calculate the number of shows it would take for a theater to make a profit after purchasing a new digital projector....

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#### CK-12 Middle School Math Concepts - Grade 6

Twelve chapters cover a multitude of math concepts found in the Common Core standards for sixth grade. Each title provides a brief explanation of what you will find inside the chapterâ€”concepts from which you can click on and learn more...

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#### Parallel Lines Cut By a Transversal

Perhaps planning a city isn't so difficult after all. Scholars first perform geometric constructions and investigate how parallel lines are useful in real-world situations. They then work on a city design project, drawing street maps,...