A laser ray box, 14 plastic shapes, and 6 example sheets can be mounted magnetically to the white board. The ray box can display from 1 to 5 beams. The plastic shapes allow demonstrations of reflection and refraction from plane, convex, and concave surfaces. The example sheets model a human eye, a camera, a Galilean telescope, a Keplerian telescope, a correction for spherical aberration, and a protractor.