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### We found 248 resources with the concept proportional reasoning

Lesson Planet

#### Smarter Balanced Sample Items: 8th Grade Math – Claim 2

Math can be a problem in eighth grade. Sample items show how problem solving exists within the eighth grade standards. Part of the Gr. 8 Claim 2 - 4 Item Slide Shows series, the presentation contains eight items to illustrate the...

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#### Math with Jake: Frequencies and Pitch

Be an octave above the rest. A musician explains how to write music in different time signatures. An interesting resource continues to demonstrate ratios using the pitch of musical notes and hertz. Pupils use a pitch table and determine...

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#### Math with Jake: Transposition Using Ratios

The star of the show is ratios. The informative resource explains how to transpose music using ratios. Individuals transpose the song "Twinkle, Twinkle" in the activity by applying their ratio skills. The activity challenges class...

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#### Area and Volume in Kapa Cloth Making

Using an installment from the Math at the Core series, pupils learn about Kapa cloth, which is made from bark. The video shows how much cloth one cup of bark makes. Then classmates, working in pairs, determine the number of cups of bark...

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#### Module 4: Similarity and Right Triangle Trigonometry

Right you are to use a great resource. Starting with a lesson on dilations, scholars learn about similarity transformations and similar triangles. They use the knowledge to develop an understanding of right triangle trigonometry in later...

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#### Human Tree: Ratios

Create a personal tree. By visiting an exhibit at the National Museum of Mathematics, the resource introduces the idea of fractals. The exhibit takes an image of the person and creates a tree by repeating scaled images on the shoulders...

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#### Scale City — Inverse Proportions and Shadows in the Real World

Bring the resource out from the shadows. Viewers of a short video learn about drive-in theaters and how operators project images onto a large screen. They then perform an experiment to determine the relationship between the distance of...

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#### Scale City — Similar Figures in the Real World

Bat a perfect thousand when learning about math and baseball. Scholars view an informative video on Babe Ruth and the Louisville Slugger Museum. They answer several questions on batting averages and scale models using ratios and...

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#### The Lowdown — Exploring Changing Obesity Rates through Ratios and Graphs

Math and medicine go hand-in-hand. After viewing several infographics on historical adult obesity rates, pupils consider how they have changed over time. They then use percentages to create a new graph and write a list of questions the...

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#### Direct Proportion

Direct change by finding the constant. Using two known values within a direct proportion, the resource shows how to find the constant of proportionality. Once individuals do that, they then find any value given the other. The video works...

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#### Recognize and Represent Proportional Relationships between Quantities: Ratio, Proportion, Cross Multiply, and Divide

Review three video clips for one major concept. The resource contains three short clips to introduce the idea of ratios and proportions and how to solve a proportion. After watching the video, partners use their noses to push pom poms...

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#### Scale City — Scaling up Recipes and Circles in the Real World

What a great big skillet you have. The resource introduces the class to the world's largest stainless steel skillet. The class creates a model of the skillet and a typical 12-inch skillet and compares the relative sizes of their areas....

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#### Similar Shapes Sides

Scale up a lesson on similarity. Young mathematicians watch a video that investigates the sides of similar figures. They see how to calculate missing sides from the given measures using scale factors.

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#### Real-Life Math | Chef

Cook up a lesson on unit conversions. Scholars brainstorm how chefs use math in restaurants, and then watch a video of a real chef explaining how unit conversions, food and supply costs, portion sizes, and payroll all require math. They...

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#### Real-Life Math | Woodworker

Woodworking is math-intensive work. Viewing a video of a woodworker explaining how he applies math in his craft sets the stage for a crafty lesson. Pupils use ratios and proportions to create scale drawings of objects.

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#### Square Partitions

Challenge your classes while developing their problem-solving skills. A square is divided neatly into four equal triangles by its diagonals until one diagonal is moved from a vertex to the midpoint of one side. Now, scholars must devise...

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#### Solving Proportions

It's all proportional. Learners watch an instructive video that explains how to solve proportions. the resource covers how to use mental math by reducing one of the sides of the proportion and then applying a multiplicative relationship....

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#### Split Time

Stay on track to learn about proportions. Scholars watch an introductory video that shows the split time for a runner on an outdoor track. Applying concepts of proportional reasoning, they determine what the runner's split time would be...

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#### Lightning then Thunder

Conquer your fear of thunder and proportions. After viewing a video of lightning and thunder, scholars consider how far away the storm is from the recorder. This obviously requires the use of proportions and rates.

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#### Mowing the Lawn

It'll take as long as it'll take. After watching a short video clip of someone moving a lawn as well as a running stopwatch, pupils estimate how long it would take to mow the entire lawn. Provided diagrams show the dimensions of the lawn...

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#### World Record Balloon Dog

What is the world record for a dog popping 100 balloons? Viewers observe as a dog pops 25 balloons and must figure out how long it should take for the canine to pop the other 75. They discover the previous record and predict if this dog...

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#### Graduation

Graduation ceremonies are huge milestones, but sometimes waiting for a name to be called gets a bit boring. Scholars find the pace the announcer calls names to determine how long until a specific name is called. Calculations work in...

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#### Electric Bill

A brilliant resource is at your disposal. Future consumers investigate and discuss an electric bill. Given only partial information, they estimate the monthly bill. They then consider how tiered pricing will affect the bill.

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#### How Big Should I Be

If you made a doll version of yourself, how tall would you be? By using ratios and proportions, young mathematicians are able to answer this question. They actually create their dolls using clay, paper, or other materials.