Expressions

Combining Like Terms: https://youtu.be/CLWpkv6ccpA

Distributive Property and Combining Like Terms: https://www.youtube.com/watch?v=RFfeEp5JmUs

Intro to Distributive Property: https://www.youtube.com/watch?v=v-6MShC82ow

Parts of an Expression: https://www.youtube.com/watch?v=JgGawPQG9bQ&feature=youtu.be

Variables and Expressions: http://www.youtube.com/watch?v=syLN2OqC_hI&feature=plcp

Verbal Models: http://www.youtube.com/watch?v=BE2wLg8RDDc