Tag: 7th

The cost of going back to school

Back to school spending is huge and students might not appreciate what it costs to send them back to, essentially, their job of learning.  In this activity students decide what equipment and supplies are necessary, estimate how much that will…

Wanna rent a chaise lounge?

Brian went to Crete and took a picture of this sign. What do you suppose he’s going to ask next? Yep.  “How much will 6 loungers and 2 umbrellas cost?”  And more … Systems begin. rent-beach-stuff.pdf

S’mores

No joke. Saturday was National S’more Day.  Thanks to Maggie Hefferman, Newton, MA educator, for the idea of this post. To help you celebrate this strange new holiday, we’ve asked students to do a little math to help quantify…

What’s the answer?

Math doesn’t usually create a buzz on Twitter.  This past week this post did just that.  People argued online about whether the answer was 16 or 1 and proceeded to insult each other’s intelligence in doing so. Use our write-up…

Are original movies better than their sequels?

We’ve gathered some data on movie ratings and their sequels and asked students to analyze the data, decide on some analysis and debate (with their mathematical data) which are better … the original movies or their sequels. Students see what…

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…

Point of view

If you have a set of cubes for your classroom, this would make a great group hands-on project. Its an old puzzle but the activity deserves a revisit. Below are two straight-on images of my stack of blocks. Can you…

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…

All-you-can-eat ice cream … 10 cents!

All the ice cream that you can eat for only 10 cents!  Wow, that’s a great deal!  How great a deal was that? The history of the Dairy Queen franchise began with this ad in Illinois in 1938.  I know…

How can Nike give away so much great stuff?

Worldwide Nike supports many teams and athletes.  They design, manufacture, and supply gear for almost every sport imaginable. How much are those give-aways worth?  Is the company going to go broke? Probably not.  Nike is huge. In this activity we…

Betsy Ross’s Star

Flag of the United States from 1777 to 1795. In honor of Independence Day we thought it would be fun to look at one story about the first American Flag. The rough design of the flag was drawn by a…

This must be a huge beach towel!

Act One: Check out this beach towel!  What do you wonder? What would you like to know? Miami artist, Misael Soto (pictured on the left below), created this giant art project to make a statement about people sharing territory at the beach.…

How much pee is in this pool?

After chlorination, it has been hard to measure the quantity of pollutants in pool water.  A Canadian chemist, Xing-Fang Li, has found a marker for urine that chlorine doesn’t disguise. In this activity, students calculate volume of several pools, change that…

The longest day

On Friday, June 21st, at 11:54 am EDT, the Earth’s North Pole will be tilted as far towards the Sun as it will ever be in the year.  This marks the longest day of the year in the Northern Hemisphere and…