Talk:GCSE Science/Current, voltage resistance and Ohm's law

To help people remember Ohm's law of V = IR, have the student draw a triangle. Then put a horizontal line in the triangle. Finally, a vertical line. (I've attached a crappy, tossed together image that someone could do a better one of and put it on the main page.) Write V in the top space, I in the bottom left, and R in the bottom right. From there, just cover up the variable that the equation asks you to find, and the remainder of the triangle shows the formula. Try it. Cover up I and you'll get V/R. It helps my students (who don't have confidence in their algebraic skills) deal with rearranging equations. --Purpill 22:46, 18 March 2006 (UTC)