She worked it out with a pencil.
A #2 pencil
Because it LED THE WAY! I'm on a roll here! this is fun! Skip
Bach to work!
None. They aren't about to change a bulb when flipping a switch has worked for 15 years.
None, that's what students are for.
Because they're all criminals and they look the same.
Calc-U-LATER
Simplifying Radicals. Yes, she's a math teacher.
The same way he solved all other problems: He worked it out with a pencil and paper.