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Stone Ice Storage
In this activity, students will estimate the volume of the Seokbinggo, a centuries-old stone structure, and compare it to the size of their home fridge. Through the activity,...
Number Sense
Geometry
Grades 5–7
How Many Pennies did Otha Save?
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...
Number Sense
Geometry
Grades 5–7
How Many Donuts is That?
Act One: Take a look at the first picture (Krispy-Kreme-photos). What is the first question that comes to mind? How many donuts is that? What information would be...
Number Sense
Geometry
Grades 4–7
Launch of the next ISS crew
If all goes well, the next crew of the International Space Station (the ISS) will launch on Sunday, Novemeber 13, 2011 from the Baikonur Cosmodrome in Kazakhstan. Keep...
Number Sense
Math and Science
Grades 4–6