Ironically, the notion of blending is nothing new. Good classroom teachers have always blended their methods—reading, writing, lecture, discussion, practice and projects, to name just a few, are all part of an effective blend. Blending is only a revelation for those who have been trying to do everything with just one tool—usually the computer—and ending up with less than ideal results. Understanding that using the right tool, in the right situation, for the right purpose should be a guiding design principle. (Flavin, 2001)