Add Yahoo as a preferred source to see more of our stories on Google. Teacher Allison Beimel received help from her father, Don, to explain fractions to her third-grade class using a pizza pie.

UNKNOWN MALE #1:I'm seriously full, guys. I can't breathe. UNKNOWN FEMALE #1:Well I'm not surprised after what you had. I'd have been full after your starters. UNKNOWN FEMALE #1:'You had one and one ...