National Research Center for Career and Technical Education
Salads
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,...
EngageNY
Making Scale Drawings Using the Ratio Method
Is that drawn to scale? Capture the artistry of geometry using the ratio method to create dilations. Mathematicians use a center and ratio to create a scaled drawing. They then use a ruler and protractor to verify measurements.
California Education Partners
Linflower Seeds
How does your garden grow? Use proportions to help Tim answer that question. By using their understanding of proportional relationships, pupils determine the number of seeds that will sprout. They create their own linear...
Concord Consortium
Heights and Weights
Height is dependent on weight—or is it the other way around? Given data from a physicians handbook, individuals compare the height and weight of males and females at different areas. They calculate differences and ratios to assist with...
PBS
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...
Curated OER
Proportional Problems 1
Eighth graders explore representing fractions as ratios and proportions. They model proportions through the use of blocks, LEGO gears and activities with bicycle gears and pedals. Students work with bicycle gear boxes to observe and...
Curated OER
My Test Book: Ratios
In this online interactive math skills worksheet, students solve 10 multiple choice math problems regarding ratios. Students may view the correct answers.
Curated OER
Ratios: missing number
In this ratios worksheet, students find the missing number in each ratio for numbers up to 10. Students complete 7 ratio problems.
Curated OER
Ratio and Unitary Methods
For this ratios worksheet, middle schoolers solve 4 short answer problems. Students determine the number of girls/boys and oranges/water given a ratio.
Curated OER
Using Ratios to Taste the Rainbow
Students solve problems using ratios and proportion. In this algebra instructional activity, students analyze skittles and their different colors as they apply the properties of ratios and proportions to solve their problems.
Curated OER
Ratio and Proportion 7.1
In this calculating ratio and proportion worksheet, learners write rations in their simplest form, write in the form 1:n for ratios, and solve word problems. Students solve 4 problems.
Curated OER
Ratio and Proportion 2
In this evaluating knowledge of ratio and proportion worksheet, 6th graders complete the mental tests simplifying ratios, solving word problems, and converting foreign money. Students solve 24 problems.
Curated OER
Comparing Ratios
Students solve problems using ratio and proportion. In this math comparison instructional activity, students identify methods used to solve and compare ratio and proportion in the real world. They apply criss cross multiplying to solve...
Curated OER
Scale Drawing
Students use ratio and proportions to solve problems. In this geometry lesson, students apply ratio and proportions to real life scenarios.
Curated OER
Using Proportions to Estimate
Students calculate ratio and proportion. In this unit rates instructional activity, students estimate using proportions and find their errors in doing so. They calculate unit rates and define the concept of unit rates.
Curated OER
Math and the Greek-Golden Proportions
Fourth graders study math and the golden mean. In this math meets Greek history lesson, 4th graders study ratios and proportions in relation to the Greeks. The use of clay is incorporated ino this lesson.
Curated OER
Points on a Line Segment
In this geometry worksheet, 10th graders solve a problem relating to the length of a line segment. The location of the points on the segment is given in terms of ratios. The one page worksheet has one problem with the...
Curated OER
Chapter 8 Extra Problems Worksheet: Similar Triangles
In this similar triangles instructional activity, high schoolers solve 6 similar triangles. Students use proportions to solve similar triangles and similar rectangles.
Curated OER
Similar Polygons
In this similar polygons activity, students identify the corresponding sides of polygons. They use proportions to solve problems. Students determine the scale factor of similar figures. This two-page activity contains...
Curated OER
Indirect Measurement with Similar Triangles
Young scholars use similar triangles to find missing heights. In this using similar triangles to find missing heights lesson, students use proportions to find the heights of missing side lengths. Young scholars find the...
Curated OER
Ratio and Proportion: Write and Interpret
For this ratio and proportion worksheet, students explore example problems. Afterwards, they read story problems and use ratios and proportions to find the solution. This three-page worksheet contains six multi-step problems,
Curated OER
Similar Triangles
In this similar triangles worksheet, 10th graders solve and complete 10 different problems related to determining the sides of similar triangles. First, they write three equal ratios to show the corresponding sides that are proportional....
Curated OER
What's Math Got To Do With It?
Students explore numbers, computation, ratios, proportions, probabilities, statistics, and money in this six lessons unit. Practical applications in the real world are emphasized through an interactive approach to math in these lessons.
Curated OER
Jazz and Math: The Beat Goes On
Young scholars 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.