Staircase Stringer Draw a pattern for a staircase stringer on a play structure. Geogebra applet instructing how to draw a stringer.
Mirror How big does a mirror need to be to see me, you and the dog? Geogebra Applet for research; Physics Page for research.
Rhombus Tiles #1 Rhombus Art on the Cartesian Plane. Geogebra applet for design.
Rhombus Tiles #2 Rhombus Design