Number Sense

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Beijing Olympic Schedule 2022

Number Sense Sports Holidays Current events Probability and Statistics
The Winter Olympics begins this week in Beijing. Wikipedia had this schedule of events. We think that there is a lot of information missing and apparent in this graphic. What can you tell, wha...

2 New Macy's Parade balloons

Algebra Number Sense Geometry Holidays Current events Ratio and Proportion
 As the Macy's Parade returns to public viewing, here are two balloons that Macy's artists have added. Can you figure out their dimensions? Macy's give their dimensions in bicycle lengths, taxi w...

Olympic Skateboarding

Algebra Number Sense Sports Current events Probability and Statistics
We are very excited to see skateboarding as an event in the Tokyo Olympics.  Skateboarding is athletic, artistic and difficult to master.  Why has it taken so long to become an Olympic ...

What is Juneteenth?

Number Sense Social Studies Current events Ratio and Proportion
   You can appreciate why this is such a great celebration when you look at the stages and some of the events and dates of America moving towards freedom from slavery. In this activ...

Monopoly

Algebra Number Sense Ratio and Proportion Probability and Statistics
In the board game, Monopoly, does a property’s distance from GO correlate to its rent when you land on it? Using Brian’s spread sheet (list of properties, distance from GO, rent and rent with...

It's tick time again ... and Lyme disease

Algebra Number Sense Science Social Studies Probability and Statistics
   With the start of summer and wonderful outdoor activities, it might be good to examine the growth of Lyme disease and to recognize its carrier, the deer tick. Will this be a rec...

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 ...

USPS needs help!

Algebra Number Sense Social Studies Current events Probability and Statistics
The U.S. Postal Service has been in the news lately.  Does it seem like your mail takes longer to reach where you have sent it now?  Do you wonder why there are delays and whether things w...

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...
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