## Quadrilaterals

Several years of work are coming together nicely. Unfortunately, I still have tests to grade. There are so many properties for students to know and remember in the quadrilaterals unit of Geometry. I started by [...]

## Trig Hexaflexagon

My honors precalculus students saw the slope hexaflexagons my geometry students were using and asked when they would get something like that. I promised when we reached our trig unit, I'd whip something up. Below [...]

## Squares and Square Roots

I was thinking about a way to make square roots more visual for my students. With graph paper, I started sketching out the perfect squares and then played with numbers that form rectangles rather than [...]

## Looking for Patterns (Arithmetic Sequences and Finite Differences)

I bought and read Jo Boaler's "What's Math Got To Do With It?" last summer. She really gave me food for thought regarding grouping by ability and gender differences. I also read "Mathematical Mindsets" this [...]