Topic
Activities about square roots
Wheel of Theodorus
Bring a little art into your math class as you begin to use the Pythagorean theorem and your students first meet irrational numbers. For Adventurer members we have...
Algebra
Number Sense
Grades 7–HS
Ravensburger huge puzzle
This puzzle is gorgeous and HUGE! Ravensburger says that if you spent 2 hours every day putting this puzzle together it would take you a year to...
Number Sense
Geometry
Grades 4–8
What me? Irrational?
We've found that some students believe that the approximation that their calculators show for irrational numbers is exact. Here's an activity that you can advertise as long multiplication...
Number Sense
Grades 5–8