ABCya
Ab Cya: Equal Ratios Asteroids
Equal Ratio Asteroids is an educational game for kids that provides practice in finding equal ratios. Asteroids with ratio problems move down from the top of the screen toward your planet. Kids must "equalize" the invaders with the...
PBS
Pbs Learning Media: Engineer a Jetliner
In this interactive lesson, students will experience the engineering design process as an aerospace engineer assigned to design and test an airplane.
Other
Math Snacks: Atlantean Dodgeball
Ratio errors confuse one of the coaches as two teams face off in an epic dodgeball tournament.
Math Drills
Math Drills: Fractions Worksheets
Download and print these worksheets to sharpen your skills working with fractions. Worksheets focus on modeling fractions, ratios and proportions, comparing, ordering, simplifying, converting, and order of operations.
National Council of Teachers of Mathematics
Nctm: Figure This: Statue of Liberty
Is the Statue of Liberty's nose too long? Challenge is to figure out the length of the Statue of Liberty's nose by knowing the length of her arm.
National Council of Teachers of Mathematics
Nctm: Figure This: Salaries
Use the information from the U.S. Census to determine if women will ever earn as much money as men.
Better Lesson
Better Lesson: Ratios With Thinking Blocks
How can you use a bar model to represent ratio problems? Students work with problem sets on the Thinking Blocks website.
Cuemath
Cuemath: Percentages
A comprehensive guide for learning all about percentages with definitions, how to calculate them, solved examples, and practice questions.
OER Commons
Oer Commons: Gallery Problems Exercise
Students who have a clear understanding of the previous lessons can work on gallery problems of their choosing. This can be used as a good review or assessment.
Homeschool Math
Homeschool Math: Introduction to Sine
This is an introductory lesson about the trigonometric function sine. Students will study several similar right triangles and the ratio of certain two sides in them.
Quia
Ixl Learning: Proportions
Brush up on your math skills relating to proportions then try some practice problems to test your understanding.
Quia
Ixl Learning: Ratios
Brush up on your math skills relating to ratios then try some practice problems to test your understanding.
PBS
Pbs Learning Media: Ratio/proportion: Targeted Math Instruction
At the end of this lesson about ratio/proportion, students will be able to recognize and apply ratios and proportions to solve real-life problems and solve for any unknown component.
PBS
Pbs: Real World Ratio and Rate Reasoning: How to Power the Skate Park
The CyberSquad works with area to figure out how to power a skate park using solar panels in this interactive from WNET. In the accompanying classroom activity, students view and analyze a series of video clips from Cyberchase and...
PBS
Pbs: Recognize and Represent Proportional Relationships Between Quantities: Ratio, Proportion, Cross Multiply, Divide
In this Cyberchase media gallery, learn about ratio and proportion and how to use an algebraic shortcut to solve proportion problems. In the accompanying classroom activity, students play a game called the "Pom-Pom Nose Push," in which...
PBS
Pbs: The Lowdown: Exploring Changing Obesity Rates Through Ratios and Graphs
In these KQED Lowdown infographics, explore how adult obesity rates in the United States, as measured by body mass index (BMI), have dramatically changed in the past half-century. A circular graph and a pictograph depict data by decade,...
PBS
Pbs: The Lowdown: Indoor/outdoor Residential Water Use in California
Compare data about indoor and outdoor residential water use in northern and southern sites in this infographic from KQED and the California Single Family Water Use Efficiency Study. The accompanying classroom activity helps students find...
PBS
Pbs: The Lowdown: A Rhythm Etic
Rock out to a musical demonstration of math involved in constructing rhythms from groups of beats in this video from KQED. In the accompanying classroom activity, students consider how the note durations comprising a measure in 3/4 time...
PBS
Pbs: Scale City: Similar Figures in the Real World
This video features the Louisville Slugger Museum and Factory, home to the world's largest bat. Students see the role that measurement and engineering play in making bats to professional players' specifications and are asked to consider...
PBS
Pbs: Kid Vid: Equivalent Ratios
Watch a video of a student thinking through the concept of equivalent ratios and then demonstrate understanding in this interactive from KET. Students review the meaning of equivalent ratio and use the Visualize It! tool to verify that...
PBS
Pbs: The Lowdown: Living Wages in Ca: Ratio and Rate in the Real World
In this KQED infographic, find out how much an adult in different-sized households needs to make to pay for basic monthly living expenses. In the accompanying classroom activity, students solve real-life problems involving rate and ratio...
PBS
Pbs: The Lowdown: Poverty Trends: What Does It Mean to Be Poor in America?
Use math to learn about changes in US wealth distribution and poverty rate over time in this interactive from KQED. In the accompanying classroom activity, students interpret the graphs and consider how the poverty rate spike following...
PBS
Pbs: The Lowdown: Examining California's Prison System: Real World Ratio
In this infographic from KQED, examine age, gender, and race in California's prison population to note the inconsistencies between who is in the general population and who is serving time behind bars. In the accompanying classroom...
PBS
Pbs: The Lowdown: The Math of Trash: Percents and Proportions
Discover how percents and proportions help explain issues like climate change, composting, and zero waste in this video from KQED. In the accompanying classroom activity, students estimate the percentage of various types of trash that...