Evaluate One-Step Algebraic Expressions by Substitution

How do algebra learners know the value of an algebraic expression that contains a variable? This video shows your number crunchers how to evaluate an algebraic expression by substituting a given number for the variable. In fact, it models an algebraic expression where the value of the variable changes and demonstrates how this changes the value of the expression. 

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CCSS: Designed
Instructional Ideas

  • The video is part of a series on reading, writing, and evaluating algebraic expressions
Classroom Considerations

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Pros

  • A clear demonstration on how to evaluate an algebraic expression by substituting
  • Included in the resource are Slides of the video lesson, Guided Practice, and extension activities for advanced learners
  • May be viewed as a class or individually
Cons

  • None
Common Core