This graphic and other optical illusions can be found on http://kids.niehs.nih.gov/illusion/illusions.htm
I am digging a post by @brad5patterson shard via @seburnt on Twitter. Brad asks educators to share "a quote that defines your teaching style.
This is a tough one for me- so many quotes, so little time! However, the first thing that came to mind is the illusion I found (above) a few years back.
Don't you think this captures the essence of teaching? I feel very fortunate.
Thanks for reading- now go share something :)