Ratio and Proportion

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Home team advantage?

Algebra Number Sense Sports Ratio and Proportion Probability and Statistics
Updated! Even before your students check out the graphic below, ask them whether they think a game played at home gives their team an advantage.  If so, how much of an advantage?  Enjoy t...

At least the days are getting longer

Algebra Number Sense Science Holidays Current events Ratio and Proportion Probability and Statistics
What's your guess?  How fast are the number of daylight hours changing each day?  Are the changes dramatic or subtle? Students make guesses; compute how l...

The new largest Lego set ever - The Roman Colosseum

Algebra Number Sense Ratio and Proportion 3-act tasks Probability and Statistics
Note: This is a remake of our 2014 and 2017 activities "How Much Does a Lego Cost?". How much could the Roman Colossem Lego set cost ? Student first make a guess and then think about what ...

It might be a good year to see the Perseid meteor shower

Science Holidays Ratio and Proportion Probability and Statistics
Catching a productive meteor shower can be a stunning experience.  On the evenings and mornings of August 11th, 12th and 13th there could be a very good show.  A last quarter moon ...

The Forever Roll

Algebra Number Sense Geometry Ratio and Proportion Funny
  That's a big roll of toilet paper!  Why would anyone need such a big roll of toilet paper?  How does it compare to Charmin's other toilet paper products? If this roll lasts for...

Does it pay to get educated?

Number Sense Social Studies Ratio and Proportion Probability and Statistics
 This activity is currently being updated…stay tuned! (May 2026)   Why should students do well in school, graduate high school, or go on to college?  In this activity median e...

Who's going back to school?

Algebra Number Sense Social Studies Ratio and Proportion Probability and Statistics
Students look at the past and present populations of the U.S. and the past and present population of school attendees to calculate the percentage of the population that are enrolled in K-12 school...

Are original movies better than their sequels?

Algebra Number Sense Ratio and Proportion Probability and Statistics
We've gathered some data on movie ratings and their sequels and asked students to analyze the data, decide on some analysis and debate (with their mathematical data) which are better ... the origi...

The Olympic Torch trip in South Korea

Social Studies Sports Current events Ratio and Proportion Probability and Statistics
On October 24, 2017, the Olympic flame was captured on Mount Olympus, Greece. That flame lit one of this year's Olympic Torches and the Torch relay was begun on its way to the opening Winter Olympic...

How much does the biggest Lego set ever cost?

Algebra Number Sense Ratio and Proportion 3-act tasks Probability and Statistics
  Picture from the Verge. Click to see the story. Note: This is a remake of our 2014 "How Much Does a Lego Cost" activity   How much could the...
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