Optical Illusions Set
Three-part set features optical illusions that will amaze students and fool their eyes!
Is it real or is it only an illusion? Fascinating three-part set includes
25 large flash cards containing optical illusions; The World's Best Optical Illusions book with more than 100 eye/brain teasers and explanations; and the Visual Illusions Coloring Book, which applies scientific principles to artistic design in
a hands-on way. For all grade levels.