Things Change, Teach

Via

The older you are, the more sense this makes. If you're under about 26-27, you probably don't understand the mind set of your teachers telling you that most of math must be done with your mind and hard work (rather than a calculator). No doubt everyone my age, and a few years younger realize why the had competitions like "Number Sense" in high school. Touche' teachers - you can't use this excuse any more!