Algebra

These posts help students see patterns and relationships.

Should I buy the BIG one?

 Let your students decide if the BIG one is a fair deal.  Click on the pic to enlarge and post on the wall.  Have kids a pick a sandwich.  Which size will they get?  Which size is a better deal?…

Wow! Only 10 cents!

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

Free Flights?

This can’t be right!  If my flight cost $200 and I stayed for 10 days it would be free.  Right?  You can kick off this activity by asking students to think about where in the world they would love to travel…

The spread of Lyme disease

With the start of summer and wonderful outdoor activities, it might be good to examine the growth of Lyme disease occurrences in the United States.  The Center for Disease Control and Prevention (CDC)  has a wonderful map that you can…

Jock tax

Great professional athletes make a lot of money. In November slugger Giancarlo Stanton signed a thirteen year contract for over $325 million with the Miami Marlins!  Did you know that professional athletes have to pay an amazing amount of federal, state,…

Can you create a fireworks display 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!

Dog years

My dog, Jorge, has just turned 10 years old.  He seems like a puppy to me but I wonder how old he is when compared to a human’s age.  He’s definitely not 70 years old. Students analyze charts and graphs…

What’s with the plovers?

Cute little birds.  Piping plovers are presently nesting on beaches along the Atlantic coast. Consequently beaches are often roped-off or closed to protect their nests and chicks.  Is this conservation working?  What should the numbers be like after so many…

How Old Are You?

We usually give our ages in years, but that isn’t very precise is it?  In this activity students find their age in days, hours and minutes.  First students take two minutes to estimate their age in days, hours and minutes.…

Big Burger

In honor of International Hamburger Day (May 28, 2015), it’s time to treat your students to ratios, proportions, fractions and BIG BURGERS! In this activity students explore the ratio of the various ingredients in the world’s largest burger (pictured above &…

Triple Crown possibilities, 2015

Updated for 2017! American Pharaoh was the first horse to win not only the Triple Crown but also the Breeder’s Cup race = Grand Slam!  Never done before. Involve your students in this soon-to-be event while reviewing fractions, calculating miles…

Growth of Facebook update

Facebook is so accepted in our world today that it is even part of nightly news broadcasts as people are noted for receiving huge numbers of likes in appreciation or interest. Mark Zuckerberg, the founder and CEO of Facebook, is…

Earthquake magnitudes, Nepal

Nepal has just experienced several tremendous earthquakes and aftershocks causing massive damage and loss of life. The IRIS (Incorporated Research Institute of Seismology) Seismic Monitor will allow your class to visualize the most recent quakes and their magnitudes in this region. Our updated…