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Ratio and Proportion

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How big could this mid-term election be?

Number Sense Math and Social Studies Current events Ratio and Proportion Data and probability

Will the November 8th 2022 election bring record number of voters to the polls? Students get a chance to understand what the usual percentage of voters is, look for trends and central tende...

I need help raking my leaves

Algebra Number Sense Current events Ratio and Proportion

Brian has spent too much time thinking about his leaves. He's worried about raking them alone and thinking about how long the job would take if people helped. In this activity students see the inve...

Inflation and the cost of gasoline

Algebra Number Sense Math and Science Math and Social Studies Ratio and Proportion

In 1980, one gallon of gasoline costs $1.22. Today's prices are a lot higher. Is that because the price has gone up or because in 1980 you could buy a lot more than you can buy today for...

Giant Pumpkins 2022

Number Sense Math and Food Ratio and Proportion Data and probability Wow factor

5 pound pumpkin compared to giant pumpkin Let your students marvel at World Record winning giant pumpkins as they use proportions to calculate the quantities of pumpkin puree and th...

How much caffeine are you consuming?

Algebra Number Sense Math and Science Math and Food Ratio and Proportion Wow factor

Did you know that there is an amount of caffeine that is too much for the growing brain of a teenager? We did some research and have asked students to examine the sources of caffei...

Willy Makeit or Betty Wont

Number Sense Geometry Ratio and Proportion Funny Wow factor

I have to go to the bathroom pretty badly. I have to admit that I have been holding it in for a while. Finally! I see a bathroom sign! Wait ... it is in kilometers? How...

A&W's bigger burger

Number Sense Math and Food Ratio and Proportion

A&W offered a bigger, tastier burger but it didn't succeed in grabbing customers away from the hugely popular McDonald's quarter pounder. The A&W third pounder...

Hexadecimal coloring

Number Sense Geometry Math and Science Math and Art Ratio and Proportion

Probably most of us have heard of and even used hexadecimal color codes. Don't you wonder why their number descriptions really make sense? In this activity we first ask students to color in o...

Where should I drop my puck

Algebra Number Sense Geometry Ratio and Proportion 3-act tasks Data and probability

Act 1 - Give students time to view the game board above or give them our one-page activity. The above picture is larger when you click on it. Ask students for their gut reaction about which sl...

Mallie's latest Big Burger

Algebra Number Sense Math and Food Ratio and Proportion

It's time to treat your students to ratios, proportions, fractions and BIG BURGERS! In this activity students explore the ratio of the various ingredients in the world's largest burger (pic...

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