Ever need to find the GCF of two numbers? Here’s a trick for finding the GCF of any two numbers — very quickly. This is an original trick, so I doubt you’ll find it anywhere else online. But most important, it’s easy to use, and it works no matter how large the numbers might be. Also nice … learning this […]

# Archive | Cultivating Original Thinking

# Cultivating original thinking

An interesting thing happened today. A girl I was working with, who’s had virtually no schooling in geometry, made a brilliant “leap” in a geometry problem. This student was starting a unit on fractions, and the curriculum was describing a standard way of conceptualizing fractions. The book was showing that if you divide a given […]