Take a guess at what the Fahrenheit reading on this sign must have been. How did you make that guess? Use the Fahrenheit conversion formula to calculate the missing number.

In mid-August and early September, the Monarch butterflies begin their annual migration south to more moderate climates to hibernate and overwinter. It is an incredibly long migration and fascinating to observe. But, the population data on the Monarchs has seriously…

Click the map to create your own at 270toWin.com Let your students see how votes really count with our activity on the Electoral College. Can someone win the popular vote in the Presidential election and still not become President of…

How much more “stufed” are they compared to Triple Double Oreos, Double Stuf Oreos or even Original Oreos. Does this look yummy to you or gross? Why are they filled with creme and not cream? Maybe Nabisco’s employees can’t spell. What do you think?

Sunday, June 20th, 2021 Sunrise on summer solstice at Stonehenge On Sunday, June 20th, at 11:31 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…

This day is known for pranks and puzzles. Try one of these 4 activities on April Fools Day. Ask students to analyze where I made my mistake PerplexingProblem.pdf For members we have solutions. PerplexingProblem-solution.pdf …

Brian’s son buys chocolate milk every few days to go with his lunch. His school creates an invoice that they send to parents every month that show the status of his milk account. Brian put $20.00 into this account to…

Brian and his son were doing some shopping when he found this shoe. Egad! Could that be someone’s real shoe? In this activity student need to use a shoe size chart, patterns or linear modeling to try to figure out…

This weekend is the wedding of Prince Harry and Meghan Markel. This will be quite an event and we can expect it to dominate the media. What have you heard about the event? What interests you? The mathematics in this…

We’ve found that some students believe that the approximation that their calculators show for irrational numbers is exact. Here’s an activity that you can advertise as long multiplication review. After they study our calculations have a discussion just to clarify…

What’s a Mersenne prime? How hard could it be to find the next one? Why are there only 50 known Mersenne primes? What’s with $150,000? The activity: NewMersennePrime.pdf

Let students explore the patterns of perfect squares and Pythagorean Triples as they analyze our piece of art and decide why the resulting construction looks like spiraling squares. For a finale they color their own spiraling triple. The activity: SpiralingTriples-activity.pdf