I love these. I posted several on my blog a few years ago. Six Visual Proofs: http://www.billthelizard.com/2009/07/six-visual-proofs_25.html http://www.billthe

I love these. I posted several on my blog a few years ago. Six Visual Proofs: http://www.billthelizard.com/2009/07/six-visual-proofs_25.html http://www.billthelizard.com/2009/07/six-visual-proofs_25.ht... Visualization of (X + 1)^2: http://www.billthelizard.com/2009/12/math-visualization-x-1-2.html http://www.billthelizard.com/2009/12/math-visualization-x-1-...