Category: Holidays and Annual Events

Investigations that relate to regular annual events.

Betsy Ross’s Star

Flag of the United States from 1777 to 1795. In honor of Independence Day we thought it would be fun to look at one story about the first American Flag. The rough design of the flag was drawn by a…

The longest day

On Friday, June 21st, at 11:54 am 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 longest day of the year in the Northern Hemisphere and…

Spiraling squares – compass and straight edge

Can you see the many spirals in this design? Students calculate the size of each increasing round of squares and consider what sort of spirals these must be. The activity: SpiralingSquares.pdf Working with a little mathematical art is a great…

Bring Mothers’ Day math to your class!

Mother’s Day by the numbers – 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…

Earth Day – 12 possible activities

Monday, April 22nd is Earth Day – There is so much to bring to your classroom to support recycling, conserving resources, studying climate change and protecting our planet. Have you seen more Monarch butterflies lately? – Students read charts, do a little research, and make observations…

Patriots Day, Tax Day, and the Boston Marathon

So much is happening on April 15th this year! As families and the news talk about filing taxes on time, it might be an excellent time to deal with where that tax money goes. Debt and Deficit give meaning to what tax…

Mess with ’em on April Fools Day

This day is known for pranks and puzzles.  Try one of these on April Fools Day. Ask students to analyze where I made my mistake.        PerplexingProblem.pdf For members we have solutions. PerplexingProblem-solution.pdf          CCSS: MP.1,…

Get ready for Pi Day!

8 possible activities! Celebrate π in your school and in your math class with activities that demonstrate how π was derived; visually show why π makes sense; show a surprising place where π is used; increase students ability to measure and long divide; applauds…

Mardi Gras – Fat Tuesday

Tuesday, March 5, 2019, will be the day before Ash Wednesday and the start of the season of Lent.  Mardi Gras is a last hoorah and is celebrated throughout the world with feasting, partying, and general indulgence. In New Orleans…

Valentine’s Day (11 possibilities)

Parametric graphing, heart area, chocolate volume, making a heart-shaped cake, pie charts of holiday candy sales, how many cans in a can heart canstruction, where do all of those flowers come from, best deal on bagged candies, making a cardioid … Valentine everything!

Lunar New Year 2019 – Year of the Pig

Year of the Earth pig Lunar New Year begins on Tuesday, February 5th. This will be the year of the Earth Pig.  The year name is a combination of 10 Heavenly Stems and 12 Earthly Branches creating a sequence of…