Alyssa Barnes

This PowerPoint begins by reviewing solving systems with substitution. It has an animated snowplow driver who makes fun of a man with a shovel for wasting his time using substitution when elimination is so much easier. (This addresses the students' complaints about learning a method they think is harder when an easier one exists). The man with the shovel will later remind the one with the snowplow that there is a time and a place for everything. There are animated examples which show positiv