Germ-Killing Wipes
In this activity, students get to dig into the real impact of disinfectant wipes. With one wipe claiming to kill 99.9% of germs and another at 99.999%, does that tiny extra percentage actual...
Math and Science
Genres
Grade
It's almost summer now
Algebra
Number Sense
Geometry
Math and Science
Math and Food
Ratio and Proportion
Data and probability
Funny
How much water do you have to drink?
In this activity student develop formulas for calculating their water needs, learn abo...
Earth Day Actions for Our Planet (April 22)
We have 16 activities that you could use for Earth Day!
April 22nd is Earth Day. Help your students become activists for our planet? We have ...
DST ends November 5th, 2023 - strange happenings
In this activity students try to figure out how time settings will change as they move from place to place and in the serious weirdness of Arizona and the Navaho and Hopi nations. What variables...
Will this be an El Niño winter?
The Oceanic Niño Index (ONI) started to show changes to the Pacific Ocean surface temperatures in April and May of this year. Those temperatures are still rising which is a marker for the upco...
Wildfires and particulate matter
Wildfires in Canada have been spreading dangerous smoke pollution throughout much of North America. What is a dangerous size of particles per cubic meter (PM)? How tiny is th...
Earth Day (April 22) Actions for Our Planet
Algebra
Number Sense
Geometry
Math and Science
Math and Social Studies
Holidays and Annual Events
Current events
Ratio and Proportion
3-act tasks
Data and probability
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Earth's perihelion with the Sun
Today, Wednesday, January 4th, 2023, Earth will be as close as it gets to the Sun during its orbit. Shouldn't that make this the warmest time of the year?
In this activity students become fam...
Inflation and the cost of gasoline
In 1980, one gallon of gasoline costs $1.22. Today's prices are a lot higher. Is that because the price has gone up or because in 1980 you could buy a lot more than you can buy today for...
Hexadecimal coloring
Probably most of us have heard of and even used hexadecimal color codes. Don't you wonder why their number descriptions really make sense?
In this activity we first ask students to color in o...