1. I'm a middle school science teacher with no science background, and I'm trying to avoid teaching any misconceptions on this topic! However, I don't know that I grasp what's going on here myself. I'm trying to explain rationale for why, on a circuit diagram, the symbol for a resistor may sometimes also indicate a load. My question is: would a light bulb filament have a lower resistance than any conductors in a circuit? Or would it be greater? Here's what I think I know so far: -Materials with lower resistance give off more light because electrons move through these materials more freely and the kinetic energy of their motion is transformed into thermal energy. -Conductors have low resistance than other materials because they allow electrons to move through them freely. 3. At first I assumed that tungsten would have a higher resistance--this seemed like the only reason why it would be classified as a "resistor" on a diagram. But if this was true, wouldn't the copper wire or other conductors in the circuit be glowing even more brightly than the tungsten? Logic would seem to suggest, then, that tungsten would have a much lower resistance than the conductors. But then why is it classified as a resistor? If I've gotten anything wrong, please disabuse me. Any clarity would be much appreciated.