Tag: 7.RP.A

Largest s’more ever!

What is reasonable.?  How many marshmallows are in this recipe?  How many people could this cookie feed? How many marshmallows could you eat?

Coronavirus trends

Johns Hopkins University of Medicine has a team that maintains current maps and data about the Coronavirus.  They record changes and show trends of the virus activity throughout the World. Enjoy exploring the data, all of the visual mappings, and…

I bought toilet paper online

Students use the pictures in this activity to approximate the size of this 16 roll package of bamboo toilet paper. They use comparison ratios with our Ruth Bader Ginsburg doll to calculate the size of one roll and then calculate the size of 16 rolls. Funny activity.

Stock Market headlines – Biggest losses since 2008

Biggest losses since 2008 – The Dow is measured in points but this decline can also be measured in the percentage lost.  Which way was the Dow being measured when this headline was produced?  Which method makes more sense? Wasn’t the initial value of the Dow much lower in 2008?

Hoarding stopped!

A Danish market found an interesting way to limit hoarding of hand sanitizer. How much are these costs in your currency? What is the unit price on these bottles? By how much (what percent) was the price increased? Is this…

Data remaining … tricky

I checked my data usage for the month.  What do you notice and wonder?   What could my data plan be? How much have I used? How much will I have used by the end of the month? Is this…

Celebrate Saint Patrick’s Day (3 activities)

Finding 4-leaf clovers! Shamrocks in Ireland are actually be 3-leafed white clover, trifolium repens. If you are lucky, you can sometimes find a four-leafed clover.  How rare is finding a 4-leafed clover?  How hard do you have to look?  What…

Iditarod – The Last Great Race

The Iditarod Dog Sled Race will begin this year on Saturday, March 7th in Anchorage, Alaska. It is often called The Last Great Race on Earth because it is so long and grueling. Students do some rate, distance, and hardship comparisons to decide…

How much snow is that?

Start out 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?  How much could that snow weigh? Students try to approximate…

How should I cook my turkey?

Bake it, deep fry it or barbecue it? When do I have to wake up to begin preparations? How long will the cooking take?  How much will it cost?  How many can I feed?

When will he use up his chocolate milk account?

Brian’s son buys chocolate milk every few days to go with his lunch. His school creates an invoice that they send to parents every month that show the status of his milk account. Brian put $20.00 into this account to…

Bears Ears revisited

There is some beautiful land in Utah that was changed last year from federally protected land to Utah overseen land.  The buttes of Bears Ears (shown above) and the surrounding territory contain over 100,000 archaeological sites and are sacred land…

Louisiana

We recently watched the approach of Hurricane Barry and worried about the fate of Louisiana. After the devastation of Hurricane Katrina, what would another powerful hurricane do to this fragile state? What is it about Louisiana that causes so much…