Bank on your ability to write equivalent expressions. Scholars use an interactive to create expressions using coins. They then convert these to algebraic expressions and figure out how to evaluate them. A game with various difficulty levels tests the ability to write equivalent expressions.

Concepts

expressions, equivalent expressions, evaluating expressions, simplifying expressions, combining like terms, coefficients

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Additional Tags

math

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Instructional Ideas

• Have learners write out algebraic expressions for their coin expressions before using the conversion feature
  

Classroom Considerations

• Knowledge of expressions is necessary
• Accessing the Teacher Tips document requires a PhET account

Pros

• Gives instant feedback
• Easy to use independently or in class
  

Cons

• None

Common Core

3.OA.A.1 5.OA.A.1 6.EE.A.2.a 6.EE.A.2.b 6.EE.A.3 6.EE.A.4