Is 2023 a special number?
1998 was a Harshad year.
What do you notice about the number 2023?
What is a Harshad number?
Does 2023 meet the criteria?
Big deal? Rare? Often?
Current events
Genres
Grade
Total lunar eclipse
On the morning of November 8, 2022, many of us will be able to see the last full lunar eclipse until March 2025.
Luckily, many of us will be able to see the eclipse pretty close to when we woul...
How big could this mid-term election be?
Will the November 8th 2022 election bring record number of voters to the polls? Students get a chance to understand what the usual percentage of voters is, look for trends and central tende...
I need help raking my leaves
Brian has spent too much time thinking about his leaves. He's worried about raking them alone and thinking about how long the job would take if people helped.
In this activity students see the inve...
What is Artemis 1 and when will it launch?
Credit: (NASA/Joel Kowsky)
50 years ago we landed on the moon. We've established a space station and flown astronauts and guests to live there. Private industries have created reusable ...
Why isn't the World Cup happening now?
The World Cup Finals is only played every 4 years but isn't it always in June?
The World Cup Finals 2022 will be played in Qatar from November 21st until December 18th, 2022. &nbs...
The odds of horse race betting
Rich Strike surprised everyone at the Kentucky Derby horse race in early May by moving from 18th place at the half-way mark (out of 20 horses) to winning the race. Churchill Downs, the track in...
Happy Friday the 13th!
Don't worry, 13 is a Happy number! Students learn a new function and test whether a number is Happy or Sad.
Refugees from Ukraine
We are hearing a lot about the war in Ukraine. Civilian Ukrainians are fleeing the war zone in order to remain safe and find food and housing. How do these numbers compare with other tragic ev...
What is my best gasoline option?
Jason Kibbe, 6-8 Gifted Support Teacher in Chambersburg, PA, sent us this timely investigation.
Should I pay the membership fee and get BJ's gasoline? Should I just buy the ch...