Algebra

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Will I pay less if I buy more?

Algebra Number Sense Ratio and Proportion 3-act tasks Any time math
image designed by macrovector / Freepik This activity can be used in a large range of grade levels.  Your class can work on percents, ...

Justin Verlander's lunch bill

Algebra Number Sense Sports Ratio and Proportion Any time math
In the 2017 World Series, the Houston Astros beat the Los Angeles Dodgers and went on to play (and lose to) the Boston Red Sox in the finals. Evidently the population of Los Angeles held a grudge wi...

Jock tax 2023

Algebra Number Sense Math and Social Studies Sports Ratio and Proportion Any time math
Great professional athletes make a lot of money. Did you know that professional athletes have to pay an amazing amount of federal, state, and sometimes even city tax? Grant Williams, a Boston Cel...

Doubling your money

Algebra Number Sense Data and probability Wow factor Any time math
My friend and I were arguing about how long it would take me to double my investment amounts.  How will your students figure this out?  Are there any tricks?  Explore investing ...

I should have invested!

Algebra Number Sense Ratio and Proportion Data and probability
  People who have invested their money in the stock markets could have made a lot of money in recent years.  Students use yearly percent increase data to decide which stock: Apple, Dis...

Which sale would you rather use?

Algebra Number Sense Ratio and Proportion
In this short activity, students decide if these two sales are the same. If not, which is better? How would you explain this to someone?

Data remaining ... tricky

Algebra Number Sense Ratio and Proportion Data and probability
I checked my data usage for the month.  What do you notice and wonder (see the activity)?   What could my data plan be? How much have I used? How much will...

Which gasoline is the cheapest?

Algebra Number Sense Ratio and Proportion
When Brian traveled to Crete last summer with his wife and son on an Archaeological dig, buying gasoline for his small rental car got him wondering again. He was pretty g...

NHL Playoff games can sure last a long time!

Algebra Number Sense Sports Ratio and Proportion Data and probability
Revised! We're watching another Stanley Cup playoff now. Will there be any really long games during the playoffs? In 2013, a Stanley Cup playoff match between the Bruins and Blackhawks wen...

President's Pay for Presidents' Day

Algebra Number Sense Math and Social Studies Ratio and Proportion Data and probability
You can't run for President now, but heck, 2036 is right around the corner. Being President of the United States will be quite an accomplishment and a ton of work.   But, how...
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