Tag: HS

String design, ellipses, and orbital mechanics

Artistic way to encourage understanding of a conic section.  Participants physically build an ellipse by choosing two foci and sketching the figure through a loop of string. While stitching an elliptical string design they puzzle about varying the foci spread and the loop length to create more extreme ellipses and are intuitively introduced to the measurement of eccentricity.

Coronavirus trends

Johns Hopkins University of Medicine has a team that maintains current maps and data about the Coronavirus.  They record changes and show trends of the virus activity throughout the World. Enjoy exploring the data, all of the visual mappings, and…

Summer Solstice, the longest day

Saturday, June 20th, 2020 Sunrise on summer solstice at Stonehenge On Saturday, June 20th, at 5:44 pm EDT, the Earth’s North Pole will be tilted as far towards the Sun as it will ever be in the year.  This marks the…

What’s a payday loan? Good idea?

When you need a loan, and you’re desperate for help, is this a good idea? Students learn about this kind of loan and examine how it compares with personal loans and debt on your credit card.  They analyze final payments…

National Donut Day

Two activities to help celebrate National Donut Day
How many donuts is that = huge box of donuts to approximate.
How have donuts changed = torus volume measurements, formula intuition, and algebraic transformation of one formula into a second formula.

A socially-distanced party

I risked infecting my friends or becoming infected myself by throwing a very small socially-distanced party.  I served baked appetizers, disinfectant wipes, and latex gloves.  I cooked while wearing clean latex gloves and served the appetizers with a spatula.  The…

May 27th launch from the U.S. again

NASA and SpaceX plan to launch humans from Kennedy Space Center, Florida, to the International Space Station for the first time since July 11, 2011. This is a more current events activity than mathematical.

Big beach towel

Since beaches are starting to open again, we thought this activity might bring smiles and hopes. Act One: Check out this beach towel!  What do you wonder? What would you like to know? Miami artist, Misael Soto (pictured on the left below),…

Fish tale, go figure!

I have two fish in my aquarium.  Betty is my white goldfish. She often stays really close to the front wall as she swims towards her food. Stripe, my clownfish, usually swims diagonally across the tank to the back top…

The AQI – Air Quality Index

See how much particulate matter, low-lying ozone, carbon monoxide, nitrogen dioxide and sulfur dioxide there is in the world’s atmosphere at any one time and place. Students learn about the scale of the AQI and search for some of the contributors to unhealthy locations.

Mother’s Day math – 13 possible activities

Mother’s Day is right around the corner and this means big business for the greeting card and floral industries. Let your students practice averages, percents, and large numbers while they analyze the statistics on Mother’s Day spending.  You could even…

Microns and Masks

How big is a coronavirus cell? How big is a micron? How well do these masks protect against the virus? What can you observe about the size of particles mentioned? Why are we wearing masks?