Brownie Points is a cute class reward system. When the class gets a compliment from someone other than myself for good behavior they will earn a brownie for their pan. When the pan gets full of brownies the class gets a special treat.
A butterfly method for cross multiplying trick to teach students after understanding is established. I'm a BIG believer in understanding being established before steps/procedures are taught (where careless mistakes can occur if a step is forgotten or omitted) and would encourage them to use this to check their calculations. I would want my students to use "fraction sense" and know the answer would be really close to one before solving this and understand why 20 would be the new denominator.
"Name Skeletons" Look closely: students folded white paper in half, wrote their names in cursive, and cut out around their names - this formed the body. They added the head, arms,and legs then mounted their "name skeletons" on black construction paper! - What a fun idea!