Population Clock
How in the world does this clock conclude that there is a net gain in the United States of one person every 14 seconds?
Have a little care about younger children when using this activity. T...
Ratio and Proportion
Genres
Grade
Water saving toilets
How much water is used? How much water could be saved?
For Adventurer members we have an editable Word docx and solutions with added world-wide information.
Immigration numbers
Here's an opportunity to work with calculating percents and the percent changes in the U.S. immigrant population. Students can reflect on what those changes demonstrate.
Start your class with this ...
Uh oh! Am I going to run out of data?
Let your students consider the graphic first individually and then in groups of your choosing before handing out the activity sheet. This might be an excellent beginning-of-the-year, get-to-kn...
Should I get the Big One?
Let your students decide if the BIG one is a fair deal. Which size will they get? Which size offers the most value? Make a guess, then do the math.
Will the new iPhone sales be huge?
Apple just announced their new, 10th anniversary, iPhones, the iPhone 8 and the iPhone X. These phones will soon be in stores, the iPhone 8 comes out on September 22, 2017. The iPhone X is ava...
How much does the biggest Lego set ever cost?
Picture from the Verge. Click to see the story.
Note: This is a remake of our 2014 "How Much Does a Lego Cost" activity
How much could the...
Total solar eclipse - apparent sizes
Where will the eclipse be seen? What if you are not in the path of totality? Total solar eclipse? What is apparent size? How can the moon seem to cover the sun complete...
Giant iceberg breaks off from Antarctica
The crack in Antarctica's Larson C ice shelf has been growing for years. Has the speed of the rift's growth stayed about the same? increased? decreased? Do the math and discuss the...
Drinks at the Fair
At the amusement park, our friend, Jason, was intrigued with this sign for drink deals. He and his family come often to the park and, during the summer when it is hot, naturally drink a lot. Whi...