Steepness and fall hiking
Fall is a beautiful time of year for hiking. Many students will be walking in the woods and mountains to enjoy the colorful leaves and the cool weather outside. Let them combine what they ...
Math and Science
Genres
Grade
Just ONE hot dog
Algebra
Number Sense
Math and Science
Math and Food
Sports
Ratio and Proportion
Data and probability
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...
The new R-naught number
There's a number used to quantify how fast a virus will spread, the R-naught number. As the coronavirus spread though out the world, we saw how the threat of infection was measured and und...
The drag in swimming - More Olympics activities
To win in Olympic swimming, contestants have to be incredibly fit and have marvelous endurance and technique. Do they also need to consider the science of their motions and the...
Do caffeinated drinks have similar amounts of jolt?
We found this interesting caffeine infographic at visual.ly.
Wonderings?
How many McDonalds coffees do I need to get the same amount of caffeine that I would get i...
AQI - Air Quality Index
The AQI is a measurement of how much particulate matter, dangerous ozone, carbon monoxide, nitrogen dioxide and sulfur dioxide there is in the world's atmosphere at any one time and place.
This W...
At least the days are getting longer
Algebra
Number Sense
Math and Science
Holidays and Annual Events
Current events
Ratio and Proportion
Data and probability
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...
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...
Extreme weather 2020
Because of climate change, we've been having too many extreme weather events. There have been unusual droughts and heat in the West, an increased number of hurricanes, severe flooding, and high ...
It might be a good year to see the Perseid meteor shower
Catching a productive meteor shower can be a stunning experience. On the evenings and mornings of August 11th, 12th and 13th there could be a very good show. A last quarter moon ...