Number Sense

iPhone 7 opening weekend

Yep, Apple just announced a new iPhone … the iPhone 7.  It will be in their stores on September 16, 2016.  What will their record sales be like this time?  How many iPhones will they sell? In this activity kids…

Does it pay to get educated?

Why should students do well in school, graduate high school, or go on to college?  In this activity median earnings by various education levels are explored.  Students compare the earnings of a non-high school grad with workers who graduated high…

Big Aussie tomato

These Aussi tomatoes (the tomato on the left of all of the tomatoes) are huge.  How much do you guess one weighs? Can you figure it out?

Labor Day, 2016

In this short activity, students learn the meaning and history of Labor Day as they look for patterns emerging from the Labor Day dates over the past years. Students then use those observed patterns to predict future dates of the…

How much does it cost to go 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 activitiy students decide what equipment and supplies are necessary, estimate how much that will…

Ghost Whisperer

Let your students play this great game online at Ghost Whisperer Crystal Ball and Figure out why it works. Construct viable arguments Critique the work of others This activity can be used with any grade level elementary through high school.  Younger students…

Who’s going back to school?

In this investigation students calculate the percentage of the U.S. population (current and historically) that are enrolled in K-12 schools. They are asked to draw conclusions from these variations. Finally, they use their calculations to predict the number of enrolled…

Olympic Medal Table

Check out the two images of the 2008 summer Olympic medal counts.  What do you notice? How are the Olympic medal counts and standings determined? The Olympic Games are competitions between athletes in individual or team events and are not…

August meteor showers

Conditions will be favorable for excellent views of the Perseids meteor showers in early to mid-August.  Let students read charts, analyze data, work with percent of moon visibility at each phase, and understand apparent magnitude in the night sky with…

Monster cake

Jodie Berman, a high school math teacher in Chicago, loves mathematics and loves to cook.  We’ve created an activity based on her Monster Cake (composed of everything that Cookie Monster loves) from her blog Binomial Baker.   Students find the surface…

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…

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…