Flipped Math
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...
Corbett Maths
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...
New Mexico State University
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...
Corbett Maths
Given 2 Ratios
Know how to solve problems with one ratio? Then solving problems with two ratios will be a cinch. Pupils watch an engaging video to learn how to solve problems involving two ratios. It first shows the method of combining the ratios into...
Corbett Maths
Ratio – Given One Quantity
If mathematicians know one value, they can definitely find the other. Given a ratio and one quantity, individuals learn to find the other quantity. An instructional video describes how to first divide to find the amount for one part,...
Corbett Maths
Expressing Ratios as Fractions or Percentages
Fractions and percentages are just as useful as ratios. An educational video describes how to express ratios as either fractions or percentages. It looks at several real-world examples to adequately cover the topic, including ratios that...
Corbett Maths
Ratio – Sharing the Total
Sharing is caring, but sharing doesn't have to be equal. Scholars watch a video that shows how to partition a total using a given ratio. The method shown here is to find the cumulative number of parts, divide the total by the number of...
PBS
Atlantean Dodgeball
Which team has the advantage? An imaginary story about a game of dodgeball in the lost city of Atlantis demonstrates the ways to compare two quantities. One coach compares the ratios of the numbers of players on each team while the other...
PBS
Soul Food Junkies: Portions
Serve up a rate of percents. The Math at the Core resource investigates the percent of daily value of sodium and saturated fats in different foods. Pupils determine the number of serving sizes they eat of popular snack foods and...
PBS
Math with Jake: Ratios and Fractions
And the beat goes on. The installment of the Math at the Core: Ratios series introduces time signatures in music. A musician shows the relationship between different types of musical beats. Working in pairs, classmates create beat...
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...
PBS
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...
PBS
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...
PBS
Math with Jake: Inverse Relationships
Use math to become pitch perfect. Music incorporates various aspects of mathematics. A musician/composer demonstrates the inverse relationship between the length of string and the ratio of the notes in a delightful video. The musician...
PBS
Math in Fencing: Division of Clock Time
Is there time? Fencers need to make mental calculations within a match. The Math at the Core MS: Ratios resource points out that fencers calculate the ratio of touches per time left to help develop strategies to win. The competitors also...
PBS
Overruled
Conversion solves a royal blunder. Using an animated video, the resource explores the importance of being able to convert measurements. Knowing the ratio of two measurements allows for the conversion between two measurement units. Pupils...
PBS
The Lowdown — A-Rhythm-Etic
Let the beat go on. A resource in the Math at the Core MS: Ratios series points out that fractions are integral to musical rhythms. The activity starts with a video to motivate the class. Classmates then work in pairs to create rhythms...
PBS
Math in Fencing: Distance as a Variable
Out lunge the opponent. Fencing uses math in determining distances between opponents. An installment of the Math at the Core: Ratios series shows how to use variables to write an expression to show the distance a fencer must cover to...
PBS
The Art of Math
Does it balance? An activity provides an opportunity to investigate the mathematics involved in making a balanced mobile. Using a stop-action video, the resource provides the formula needed to create a mobile that balances. The Math at...
PBS
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...
PBS
Scale City — Proportional Relationships in the Real World
Strive to determine your stride. Scholars first view an informative video on the Kentucky Horse Park and the 28-feet stride of the Man o' War. They then work together in groups to find the length of their own strides by using the number...
PBS
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...
PBS
Scale City — One-Dimensional Scaling in the Real World
Dinosaurs sure were big! Viewers of an engaging video discover the Dinosaur World in Kentucky and how scales and proportional reasoning factor into the dinosaur models in the park. They then work through several problems on scales and...
PBS
Real World Ratio and Rate Problem: Bianca’s Fifty Percent Solution
Fifty percent off can still be quite expensive. Future consumers watch a video showing an irresponsible young shopper overspending in a 50 percent off sale. They then use store ads to calculate 10, 25, 50, and 75 percent discounts on items.