Category: Algebra

These posts help students see patterns and relationships.

Let’s get rich

There has been a lot of craziness in the stock market lately, but people who have invested their money in the markets could have made a lot of money in recent years.  Students use yearly percent increase data to decide…

How Much is a Tweet Worth?

These days it seems everyone is on social media. Are you? Famous athletes and entertainers are on social media and they can make a lot of money.  In this activity students study how the number of Twitter followers relates to tweet…

In the Cloud

I want to find a way to keep my photos, documents, videos and music in a place that is safer than on my computer.  If my Macbook Air melts, where can I keep my irreplaceable files so that they aren’t…

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

Deer tick

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,…

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…

Passover macaroons

Passover begins this year on Monday evening, April 10th, 2017, with a Passover seder dinner. Passover is one of the three high holidays in the Jewish religion and celebrates the Exodus of Jews from slavery in Egypt. Let your students…