Try this experiment with a friend.
Stand behind him and ask him to focus on everything in the room that's blue. Ask him to make a mental note of each blue item he can see in front of him.
When he's done, ask him to close his eyes and tell you everything in the room he remembers seeing that was the color yellow (or any other color that isn't blue). More than likely, he'll laugh and say, "I can't!"
That's because his brain spent all its conscious energy focusing exclusively on blue. It labeled all the other colors as insignificant and didn't even see them.
That's how our minds work. Once we start looking exclusively for the blue, we have trouble finding any yellow. When we look for what we don't like or don't have, we see and remember only that.
Get Off your But, por Sean Stephenson, pg. 143
Esta lista veicula diariamente uma história, preferencialmente engraçada (afinal, quem não gosta de uma boa piada?), ou uma citação. As histórias estão em inglês, e as palavras mais incomuns são comentadas. Dessa forma os alunos aprendem, todos os dias, duas ou mais palavras novas. Todos os dias. Em um ano esse pequeno esforço diário pode vir a fazer uma grande diferença.