Curated OER
A Geometry Worksheet - Similar Triangles
In this similar triangles worksheet, high schoolers find the scale factor of 6 sets of similar triangles. Students find the scale factor of two similar triangles given a sketch with measurements. High schoolers use proportions to find a...
Curated OER
Ratios
Sixth graders pariticipate in a lesson that focuses on the finding of a ratio and using it to set up a proportion in realtionship to creating a scale drawing. This is done using given problems. It would be valuable for students to have...
Curated OER
Solving Percent Problems with Proportions
Seventh graders explore the concept of percent problems. In this percent problem lesson plan, 7th graders use proportion equations to solve percent problems. Students find percentages of numbers and use proportions to determine...
Curated OER
Proportional Division
In this proportional division activity, students read through an example and complete 5 practice problems using proportional division. Students then complete 18 problems on their own in which they use proportional division. They can...
Curated OER
A Matter of Proportion
Students measure the relative heights of the mosaic giraffe and its trainer and compare their proportions to an actual giraffe and zoo trainer.
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
7.RP Music Companies, Variation 1
We've got the beat! And your musically-minded mathematicians will tap their toes as they determine which music company would be getting a better deal based on their offers to buy out TunesTown. The topic is extended in an additional...
Curated OER
How Fast is Usain Bolt?
Revisit the 2012 Summer Olympics by having seventh graders calculate the unit rate sprinting speed of the 100-meter gold medal winner.
Helping with Math
Ratio and Proportion: Rates
Unit rates are introduced to your math minors on this printable instructional activity, complete with answers. There are only three problems: the first involves biking speeds, the second the cost of bracelets, and the third the cost of...
Curated OER
Leveled Problem Solving Using Proportions with Similar Polygons
In this proportions and similar polygons activity, students solve the problems that use proportions, rations, fractions, and similar polygons.
Curated OER
Ratios
For this ratios worksheet, 6th graders solve and complete 3 different types of problems. First, they divide each amount shown in the ratio of 2 to 3. Then, students explain why the amounts worked out to be whole numbers.
Curated OER
Using Similar Polygons
For this geometry worksheet, students use the properties of similar polygons to find the indicated missing length or the scale factor. The two page worksheet contains twenty-two questions. Answers are included.
National Research Center for Career and Technical Education
Back to Basics
Your class will enjoy this Health Science lesson created by CTE and math teachers from Missouri. Learners make conversions between the apothecary system and metric and US standard measurements used in the healthcare field. The CTE...
Illustrative Mathematics
Buying Protein Bars and Magazines
Packing for a trip? This activity allows learners to decide how many magazines and protein bars they can buy with twenty dollars. They can organize their work in a chart to track how many items they can purchase. There are two different...
Illustrative Mathematics
Gotham City Taxis
Taxi! Have your travelers figure out how far they can go in a taxi for $10.00. They must account for the mileage rate and tip in their calculation. They can set up a table or make an equation to solve for the exact mileage they can...
PHET
Unit Rates
Sometimes you just want to know the cost of one apple. A fun interactive lets learners explore the unit costs of fruits, vegetables, and candy. It shows how ratios to express ratios symbolically and on a double number line.
PBS
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...
Scholastic
Study Jams! Similar Figures
Discover how triangles are congruent based on their sides, angles, and proportionality. Learners explore the ways to determine similarity at their own pace, and then they practice afterwards with an assessment.
Gfletchy
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...
Curated OER
Chances Are......You're Right
Young mathematicians study probability. In this math instructional activity, learners calculate odds, and convert those into percentages of probability. Fractions are also used, making this instructional activity quite rich in some of...
Balanced Assessment
At the Supermarket
Grocery managers and chefs sure use lots of math. Scholars first use ratios and unit rates to determine a price for a can of corn. Once individuals have the pricing, they determine the amount of ingredients necessary to make brownies...
Noyce Foundation
Measuring Mammals
Explore the meaning of scale and proportion with a set of five activities that examines the topic from elementary through high school. The first lessons explore ratio by examining pictures of different sizes. The next three activities...
Curated OER
Australian food
Use ratio and proportions to adjust recipe size. Middle schoolers investigate Australian food and adjust the recipe size for said foods according to the given situation. They then prepare Australian foods.
Curated OER
When Am I Ever Going to Use this?
Young scholars solve problems using equations and properties of integers. In this algebra lesson, students solve problems using ratio and proportion and graph their answers on a coordinate plane. They solve word problems using geometry.
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