Variables are the name of the game. The video instructor explains the importance of defining a variable and then models how to write an expression. He reviews three different problem scenarios and then builds expressions to model each situation.

Concepts

expressions, writing expressions, evaluating expressions, units of measurement

Show More Show Less

Additional Tags

math

Show More Show Less

Instructional Ideas

• Pause the video after the presentation of each problem; have individuals write their own expressions and check with the video answer
• Post the lesson as a resource for review

Classroom Considerations

• Requires previous work with variable expressions

• This video is hosted on YouTube

Pros

• Emphasizes the need for units
• Offers clear explanations that are easy to follow

Cons

• None

Common Core

SL.6.2 SL.7.2 SL.8.2 SL.9-10.2 6.EE.A.2.a RST.6-8.7 RST.9-10.7