One day, one of my kids was staring at a simple circuit diagram. It showed a battery connected to a resistor and a light bulb. He was doing a homework problem. The particular question that had him stumped asked what would happen to the current in the circuit if the resistor was replaced with another that had more resistance. He hadn’t been in class that day and had never studied electricity, and so he stared at the diagram for a few minutes without comprehension.
My son had reached what psychologists call an impasse, which is really just a fancy way of saying that he was stuck. [Read more…] about Is There a Formula for Smart Thinking?