How old are you?
We usually give our ages in years, but that isn't very precise is it? In this activity students find their age in days, hours and minutes. First students take two minutes to estimate the...
Algebra
Genres
Grade
The James Webb telescope
After launch, the telescope deployed on its 30-day, million-mile journey out to the second Lagrange point (L2). This video shows the deployment procedure, timeline, and location of the sate...
Just ONE hot dog
A newly released nutritional and environmentally sustainable study shows that eating just one hot dog can take 36 minutes off your total healthy lifespan.
How many would you have to eat to lo...
Need to rent some chaise lounges
Brian is in Crete and he took a picture of this sign. What do you suppose he's going to ask next?
Yep. "How much will 6 lounges and 2 umbrellas cost?" And more ...
Systems begin.
...
Shoprite's solar energy goals on the African continent
Shoprite is the largest supermarket chain in Africa. The company is presently engaged in increasing their use of solar power to harness the abundant natural resource of solar potentia...
At least the days are getting longer
Algebra
Number Sense
Science
Holidays
Current events
Ratio and Proportion
Probability and Statistics
What's your guess? How fast are the number of daylight hours changing each day? Are the changes dramatic or subtle?
Students make guesses; compute how l...
Crazy basketball score
Wow! Look at that score!
There were some scoreboard malfunctions in this December 15, 2020, pre-season game.
What might have been the final score if this game progressed at this rate?
...
December 21, 2020 - Great conjunction
Right now, just after sunset, in the southwest sky, you can check out the planets of Jupiter and Saturn as they get closer and closer to each other. They are millions of miles apart but they app...
USPS needs help!
The U.S. Postal Service has been in the news lately. Does it seem like your mail takes longer to reach where you have sent it now? Do you wonder why there are delays and whether things w...
Microns and Masks
How big is one coronavirus? 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?