Algebra

These posts help students see patterns and relationships.

Can you create a fireworks display on your calculator?

Let your students experiment with their graphing calculators to create a nice 4th of July display?  We’ve written a brief activity that questions students about manipulating parabolas, adjusting their calculator windows, and helping them celebrate the Fourth. Or consider using Desmos or Geogebra to create…

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 or is he?  Hmmmmmm … Read tables…

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…

The longest day

On Sunday, June 21st, at 12:39 pm EST, the Earth’s North Pole will be tilted as far towards the Sun as it will ever be in the year.  This marks the longest day of the year and the summer solstice in…

Two ideas for Father’s Day

Blueberry Muffins is a short activity that asks students to change the amounts in a blueberry muffin recipe to multiples of and fractions of a ¼ cup measuring cup (multiplication and division with unit fractions).  fathers-day-muffins.pdf For members we have an…

Games with dice

Time to let students become naturally curious about probability.  In this activity students work in teams to record the frequency of rolled dice combinations. They observe the difference between experimental and theoretical outcomes and consider how sample size affects how close…

Is college affordable?

Widener Library, Harvard University Whether you or one of your siblings is going off to college next fall, it is useful to know how much colleges cost.  Not going to college this fall? No worries, we can use the information…

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.…

What a week coming up!

June 3 – Start of the NHL Finals June 4 – NBA Finals Greatest NBA season ever June 5 – National Donut Day – How many Donuts is that? June 6 – Running of the Belmont Race – Triple Crown Possibilities Odds of Winning the…

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 &…

Memorial Day, 2015

This Monday Americans will celebrate Memorial Day.  Who are we honoring?  How did the holiday come about?  Isn’t Memorial Day usually later in May? Students learn a little about the history of the holiday, analyze the possibilities for when it…

Triple Crown possibilities, 2015

American Pharaoh won the Triple Crown !!! American Pharaoh has now won the Kentucky Derby and the Preakness horse races. Will he win on June 6th at the Belmont stakes race and be the first Triple Crown winner since 1975?…

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…