EngageNY
Comparing the Ratio Method with the Parallel Method
Can you prove it? Lead your class through the development of the Side Splitter Theorem through proofs. Individuals connect the ratio and parallel method of dilation through an exploration of two proofs. After completing the proofs,...
Curated OER
Ratios and Proportions
This study guide would be great to use when presenting a lesson on ratios and proportions. It includes clear definitions, explanations, and examples to work through as a class or individually. In addition, it has notes on rates and...
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.
Illustrative Mathematics
Games at Recess
A great non-calculation problem that lets your math minds explore without the pressure of the right answer. Your learners will have to compare boys and girls playing soccer and jump rope during recess. How many more boys than girls are...
Scholastic
Study Jams! Proportions
Join Zoe and Sam as they use proportions to budget money for their Green Earth Club. Watch as they set up and solve a series of proportions using cross multiplication and division. A great resource that brings together prior knowledge of...
Curated OER
What Is A Rate? Practice Sheet
Your mathematicians practice expressing rates with ratios. They identify from among 12 ratios the ones that are unit rates. They express six given situations as two equal rates each. Finally, they interpret data about fuel efficiency...
Virginia Department of Education
The Ratio of Surface Area to Volume
Demonstrate the ratio of surface area to volume in your high school class by using phenolphthalein, gelatin, and an onion. Intrigue the class by leading a discussion on osmosis and diffusion, then making "scientific jello." Participants...
Chemistry Collective
Virtual Lab: Determining the pKa and Concentration Ratio of a Protein in Solution
It's pretty common to determine the dissociation constant for an acid or a base ... but, what about a protein? Challenge your class with a virtual lab designed to further develop their acid-base chemistry skills. Individuals determine...
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...
PBS
The Lowdown — Examining California's Prison System: Real-World Ratio
Free yourself from the shackles of traditional math lessons. Young mathematicians investigate race, gender, and age differences in California's prison system. They use provided graphics to compare the prison population with the state's...
Curated OER
Proportionality Using Labyrinths and Mazes
Conduct research on the Internet about labyrinths and mazes to learn about proportions and ratios. Inquisitive minds design their own maze, one maze is chosen and proportionately enlarged to 20 feet by 30 feet. This is a fun challenge...
Curated OER
Our Solar System - Comparing Planetary Travel Distances
NASA presents a mini-unit on distances in our solar system. It incorporates scientific concepts of gravity, mass, density, and payload while your aspiring astronauts also employ mathematics skills. They calculate speed, they determine...
Curated OER
Hybrid Vehicles: Cut Pollution and Save Money
Math and science meet in this lesson on hybrid electric automobiles. This 24-page resource provides everything you need for teaching a lesson that compares the use of internal combustion engines to hybrid electric engines. Participants...
Curated OER
Math - Blank Jeopardy
Double Jeopardy! Review polynomials, statistics, triangles, graphing, mode, median, mean, measurement, slope, distance, and ratio. Note: Have everyone use a white board to do the problems to get a quick check on understanding.
Yummy Math
Starbucks Drinks
The casual language and popular topic will make this assignment all the more engaging for your middle school math class. They use Starbucks beverage sales and nutrition values to practice ratios, proportions, statistics, and...
Scholastic
Study Jams! Rate
Zoe is reading books over vacation and wants to know at her current rate, how many will she finish by the end. Building on prior knowledge of fractions and ratios, young mathematicians learn how equivalent rates are used to answer her...
Illustrative Mathematics
Overlapping Squares
The objective of this activity is to find the percent of the area of a two squares overlapping. Mathematicians find the ratio of area for the part that overlaps to the rectangle formed. The final answer is a percent as a rate per 100....
Curated OER
Ratio word problems
In this ratios worksheet, students read word problems containing one and two digit numbers and answer 3 ratio questions for each problem. Students complete 9 ratio problems total.
Curated OER
Ratios: colored circles
In this ratio worksheet, students answer short answer questions about the ratio of colored circles to one another. Students complete 9 problems.
Curated OER
Ratios: true or false
In this ratios activity, students answer true or false to the ratios in each problem whether they are correct or not. Students complete 10 problems dealing with numbers less than 30.
Curated OER
Remarkable Ratios
In this ratios learning exercise, students examine pictures of 12 cartoon characters. Students solve 12 problems in which a ratio is written to show the number of characters with certain attributes compared to the total number.
Curated OER
Daily Time Ratios
Students track and record how much time they spend on each activity. In this spreadsheet lesson plan, students apply different functions using Microsoft excel to format cells and calculate the sum of their total time spent each day....
Curated OER
Ratios
In this ratio learning exercise, students provide conversions for sets of ratios in charts, converting to fractions, decimals and percents. A website reference is given for additional resources.
Curated OER
My Test Book: Ratios, Fractions, and Decimals
In this online interactive math skills worksheet, students solve 10 multiple choice math problems regarding ratios, fractions, and decimals. Students may submit their answers to be scored.
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