Impress your parents at dinner
This activity is the first in our series on mental math tricks. Let your students develop their own individual way of mentally multiplying by 0.5, 5, 50, 500, and so on. We have a litt...
Genres
Genres
Grade
What are the odds that Justify can win the Triple Crown?
Justify has won the Triple Crown. He's the 13th horse to ever win all three races ... Kentucky Derby, Preakness, and the Belmont Stakes. Amazing!
Justify w...
More eruptions on Hawai'i's Kilauea
The Volcano Kilauea is continuing to spew molten lava and ash on the island of Hawai'i. This volcano is on the tip of the southern most Hawaiian Island. Is that significant?
In this activit...
Boeing 787 draws an airplane over the United States
Recently, pilots of a Boeing 787 testing a new set of Rolls Royce engines, fulfilled their FAA required long-distance endurance requirement in an unusual way. The Boeing pilots decided to have ...
How fast can you run?
Have you heard of The Six Million Dollar Man? He was the character in a science fiction show about an astronaut that was rebuilt, bionically, after his space ship crashed. He could run a...
Jackie Robinson
April 15th, 1947 was a date to remember. Jackie Robinson became the first African-American baseball player to play in Major League Baseball since the game was segregated in the 1890s. Robinson...
What me? Irrational?
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 ...
Want to earn $150,000? - Mersenne prime search
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?
Curling
Friction, score-keeping, trajectory and weirdness are the main concepts in this activity. Curling is not a well-understood sport but the science and strategy are easily understoo...
Big Air snowboarding
Starting February 18th a new Olympic sport will be televised ... Big Air Snowboarding. Some of your students may be officianados of snowboarding. Using this activity could be an opportunity to l...