Activity for the big kids today: Without using a ruler, determine whether this triangle is equilateral, isosceles, or scalene. Prove it.
In over our heads with radicals in 8th grade Algebra this week, so we took some time to review the Pythagorean Theorem. Geometry is so beautifully concrete. In addition to demonstrations you can do with drawings and such, here's an example of a very cool model that my 8th graders found wonderfully entertaining. As … Continue reading Pythagorean Theorem
Here's a great new resource for teaching your kids economics. The Tuttle Twins and the Miraculous Pencil follows Ethan and Emily Tuttle on a class field trip to a pencil factory. They learn about how products we consider simple, everyday objects are actually not simple at all! The story explores economic principles such as the division of … Continue reading Teaching Econ
Whenever I'm working on geometry with my students, I try to keep the focus as real-world as possible. So much of math operates in the abstract; geometry, by contrast, is thoroughly tangible. This is a time when we can easily and naturally give ideas to the hand before we give them to the mind. Take … Continue reading Geometry in the Real World