You oughta have your son introduce his teacher to imaginary numbers. She'll wish she had taken the time to listen to pi!

I must admit that I may have accidentally planted the seed in my son's head in 3rd grade, when I knew they were discussing simple squares & roots.

"Mr. J -- What's the square root of negative nine?"

Not nice, I know ... and it definitely threw the teacher for a loop. It's okay to have fun with these kids once in awhile, right?

Dandy

Being offended is a natural consequence of leaving the house. - Fran Lebowitz