10 cents for all you can eat ice cream! Crazy!

All the ice cream that you can eat for only 10 cents!  Wow, that's a great deal!  Or is it?Cone

The history of the Dairy Queen franchise began with this ad in Illinois in 1938.  I know that 10 cents was worth more in the past but was it worth enough even then? How much would that all-you-can-eat ice cream special cost today?  

Pokémon GO! I should have invested




Pokémon GO is all the rage.  News reports show people glued to their smart phones as they travel to nearby landmarks where virtual critters appear and need to be caught by throwing Pokémon Balls with a phone swipe. Well, at least those gamers are getting a little exercise.

Let your students talk about gaming as they quantify how popular this has become, how much data is consumed by gamers, how much of an average data plan will be consumed by playing, and how they could have become rich had they invested in Nintendo stock.

10 Million nematodes



Grubs are killing my grass.  I don't want to put poison into the ground.  What can I do?

There are tiny roundworms called beneficial nematodes. They can kill destructive soil pests in your garden and lawn.  They are tiny worms that infect the grub and larvae phase of these insects and kill them.  To my surprise, a shipment of nematodes includes 10 million worms ... and they are pretty invisible to the naked eye.  Did I order some of the kings new clothes?

How high can a gymnastic score be?

2016 USA Olympic

2016 USA Olympic Team

front row: Laurie Hernandez, MyKayla Skinner, Simone Biles, Ragan Smith
back row: Ashton Locklear, Aly Raisman, Alyssa Baumann, Gabby Douglas
MyKayla Skinner, Ragan Smith and Ashton Locklear were named as alternates.

Gymnasts have just successfully competed in San Jose, California for positions on the 5 person USA Olympic team.  As you watch their performances don't you wonder how their scores are determined and what the top score could be? (It's not a 10 anymore!)

Lighting the Olympic Torch

The 2016 Summer Olympic games won't begin until on August 5th of this year but already the Olympic Torch has been lit and is traveling to the game's site, Brazil, by 12,000 relay participants. Watch the lighting video and wonder how it was done ... where is the match?

4th of July


Fireworks on your calculator - Let your students experiment with their graphing calculators to create a nice fireworks display?  We've written a brief activity that questions students about manipulating parabolas, adjusting their calculator windows, and helping them celebrate whatever. Or consider using Desmos or Geogebra to create these fireworks. Enjoy!      CCSS:  HSA.SSE, HSF.IF

Flag Art - A little ratio art might be a fun way to get ready for July 4th.  In this past Memorial Day activity students measure; create whole number ratios for the official U.S. flag; decide how our artistic flags will be different from the official flag; make stars from regular pentagons, and finally create a flag design in honor of the fourth.       CCSS: 4.NBT, 4.NFB, 5.NBT, 5.NF.B, 6.RP.1, 6.RP.2, 6.RP.3, 7.RP.1, 7.RP.2, 7.G.1