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...
Wow! It's been a long time coming. The Chicago Cubs just won the World Series! The last time they won the World Series was in 1908 (For some perspective, that is the same time ...
mage from Chipotle.
One of my favorite foods is a burrito. One of my favorite places to get a burrito is Chipotle. Their food is delicious and environmentally friendly.
For Hallow...
How do you calculate and justify which deal is a better savings? By dollars saved? By percent saved? By some other measure? Looking at 4 different deals, students will need to...
Otha Anders used picking up pennies as a way to remember to pray. In this 3-act activity we try to estimate how much he actually collected and stored in 5 gallon water jugs. This ...
That sounds like an awful lot of their Facebook shares. They want to help create a better world for their daughter, Max.
I wonder if they will have enough left over to live on?
The...
There is yet another Oreo...
This activity builds off the work that Dan Anderson's math class revealed about Original Oreos and Double Stuff Oreos. Students begin by working with the weight of just...
This can't be right! If my flight cost $200 and I stayed for 10 days it would be free. Right? You can kick off this activity by asking students to think about where in the...
Cute little birds. Piping plovers are nesting on beaches along the Atlantic coast. Consequently beaches are often roped-off or closed to protect their nests and chicks. Is this conservatio...
Thank you Mother and Father for all of those diapers
Which is a better deal, cloth or disposable diapers? How much did you cost your parents in diapers? In the future how much could...