Really big beach towel

Act One: Check out this beach towel!  What do you wonder? What would you like to know?


Towel project by Misael Soto.

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.

In the morning he brings sunscreen, snacks, drinks, and games to share and ... lays out his towel.

July sale!

For a limited time, we are offering YummyMath at a reduced rate.

Individual membership is $18.00 for one year of unlimited YummyMath material.

You can pay with your credit card and register using the first PayPal button below.  You don't need to be a PayPal member to pay using this method.  Just click on the PayPal image to begin.

or you can snail mail your payment using this invoice document: Individual-SummerSale$18.pdf

No need to wait until your present membership completes. Your renewal will automatically extend for a year from your previous end of term date.

Groups, whole departments, and school districts can enjoy these rates:

  • 2 to 4 members at $18.00 each
  • 5 to 9 members at $17.00 each
  • 10 to 20 members at $15.00 each

Choose the number of people in your group

You will need to email Leslie with your staff names, email addresses, and chosen usernames.

Or you can snail mail your payment and information using this document:  GroupPricing-SummerSale-invoice.pdf

Now that LeBron James is becoming an L. A. Laker, will this company go broke?

Fanatics is an online sportswear retailer that has promised to accept jersey returns if your chosen player makes a team switch.

In this activity student try to calculate how much this "Jersey Assurance" program will actually cost the company.  This task requires a lot of discussion, reasoning, and approximation to conclude whether this is a good marketing maneuver or a "bust".


CCSS: 6.RP.A, 7.RP.A, HSM, MP3, MP4, MP5

World Cup – How many ways?

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present world cup scores

How many games are played in each round of the World Cup?  In the opening round each of the four teams in a group must play each other (round robin format).  From then on each round is a knock-out round ... if you lose then you are out.  Let your students enjoy learning about what they are watching and question what and how much each team must do. There is so much math in the World Cup games.  Enjoy!

Encouraging bats might be better than using bug repellant

Bats eat mosquitoes ... lots of mosquitoes. Students compare a bat's weight to how much he can consume in one night.  They calculate how much they would need to eat to consume a comparable proportion of food.

We compare the amount that an entire bat cave would eat in one night with the tremendous load of a giant dump truck.  Unbelievable!

World Cup draw

This is part II of our reflections on the World Cup games.  Part I, World Cup rankings, explained and let students practice with the formula and weighting that is used to establish each country's team rank.

This second activity deals with the method of sorting the teams into 4-team groups for the first round of play.  Students can study the draw, make observations, and then try to create what they think might be a more fair method for deciding which countries should compete in the opening matches.