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.
Ratio and Proportion
Genres
Grade
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
This activity is currently being updated – to be posted before end of April, 2026. Please check again later. Where will the eclipse be seen? What if you are not in the path of totality? &nb...
Giant iceberg breaks off from Antarctica
The crack in Antarctica's Larson C ice shelf has been growing for years (2017). Has the speed of the rift's growth stayed about the same? increased? dec...
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...
New Pirates of the Caribbean (2017) - How profitable?
The fifth Pirates of the Caribbean movie opened on Friday, May 26th ,2017. Your students might be looking forward to seeing this movie and motivated to understand the investment expenses and pr...
Proposed southern border wall
You have probably heard about the proposed border wall that may go up along the U.S./Mexico border. How much wall needs to be built? How much will that cost? What is that per mile? Per foo...
Measuring sea level
What does this gizmo do?
We've given students a diagram of what the interior of this mechanism contains and asked them to try to decide what its purpose must be.
Then we've...
Giant iceberg
Ferryland, Newfoundland. JODY MARTIN / REUTERS This giant iceberg drifted past Ferryland, Newfoundland in 2017. It's hard to tell how large it actually is, but...