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Ratio and Proportion

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We found 217 post available for you

John Urschel, retired Baltimore Raven and Black mathematician
Number Sense Math and Social Studies Sports Current events Ratio and Proportion
John Urschel is a young man with several seemingly disparate characteristics and talents.  He is an athlete and a mathematician and he is a black man and a mathematician.  He loves what he...

At least the days are getting longer
Algebra Number Sense Math and Science Holidays and Annual Events Current events Ratio and Proportion Data and probability
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...

How should I spend my rewards?
Algebra Number Sense Math and Social Studies Math and Food Current events Ratio and Proportion
There's a new way to earn rewards at many grocery stores.  For every dollar that you spend, you accumulate points.  Then there are special rewards where you earn an extra 500 points for ...

Crazy basketball score
Algebra Number Sense Sports Current events Ratio and Proportion Data and probability
Wow! Look at that score! There were some scoreboard malfunctions in this December 15, 2020, pre-season game.  What might have been the final score if this game progressed at this rate? ...

How much snow is that?
Algebra Number Sense Math and Science Ratio and Proportion
Start this activity with: What do you notice? What do you wonder? How many inches of snow produced that pile?  How much snow in volume is on top of the car?  H...

The new largest Lego set ever - The Roman Colosseum
Algebra Number Sense Ratio and Proportion 3-act tasks Data and probability
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 ...

Ravensburger huge puzzle
Number Sense Geometry Math and Social Studies Math and Art Ratio and Proportion
 This puzzle is gorgeous and HUGE! Ravensburger says that if you spent 2 hours every day putting this puzzle together it would take you a year to finish. What do you wonder? Students ...

Candy deals
Number Sense Math and Food Holidays and Annual Events Ratio and Proportion 3-act tasks Data and probability
We found big mixed bags of candy at really good prices ... we think. Students are asked to decide which would be the best deal and the worst deal on candy.  They can also create t...

Is the Electoral College fair?
Number Sense Math and Social Studies Current events Ratio and Proportion
Show your students this really cute segment comparing how the Electoral College functions in our elections to what students think is fair and just. From the New York Times, Electoral ...

Monster cake
Number Sense Geometry Math and Food Ratio and Proportion
Jodie Berman, a high school math teacher in Chicago, loves mathematics and loves to cook.  We've created an activity based on her Monster Cake (composed ...
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