Ratio and Proportion

We found 29 post available for you

It's almost summer now

How much water do you have to drink?   In this activity student develop formulas for calculating their water needs, learn about the effects of too little wat...

Will I pay less if I buy more?

image designed by macrovector / Freepik This activity can be used in a large range of grade levels.  Your class can work on percents, ...

Hurricanes again

Updated In this updated hurricane activity, we've ask students to examine the Saffir-Simpson hurricane wind scale and consider what other elements besides this ranking may contribute to t...

This shoe is huge!

Brian and his son were doing some shopping when he found this shoe.  Egad!  Could that be someone's real shoe? In this activity student use a shoe size chart, patterns or linear modelin...

Can Joey and Miki do it again?

Updated !              The MLE - Major League Eating is a World organization that oversees speed eating contests. Entrants to the various competitions must be...

Earth Day (April 22) Actions for Our Planet

<a href="https://www.freepik.com/free-photo/watercolor-textured-blue-background_15559582.htm#fromView=search&page=1&position=22&uuid=5c957d6a-8767-4ae9-9522-cdefcf4825b7">Image by ra...

Earth's perihelion with the Sun

Today, Wednesday, January 4th, 2023, Earth will be as close as it gets to the Sun during its orbit. Shouldn't that make this the warmest time of the year? In this activity students become fam...

Wind chill

The weather forecasters tell us what the wind chill temperature will feel like. How do they figure out that number? In this activity students use the National Weather System chart ...

I need help raking my leaves

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...

How much caffeine are you consuming?

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...