Learning Goal
Identify when two expressions are equivalent
Teacher tools for this standard
Lesson Plan · Guided Notes · Exit Ticket · Re-teach · Homework
Teacher tools for this standard
Lesson Plan · Guided Notes · Exit Ticket · Re-teach · Homework
- Lesson Plan →Objectives, pacing and practice, built from this lesson's brief.
- Guided Notes →One page your students fill in and keep.
- Exit Ticket →Three items at the end of class. No student accounts.
- Re-teach →After an exit ticket: who missed what, and what to do tomorrow.
- Homework →Assign practice; it grades itself.
Identify when two expressions are equivalent (i.e., when the two expressions name the same number regardless of which value is substituted into them). For example, the expressions y + y + y and 3y are equivalent because they name the same number regardless of which number y stands for.
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Identify when two expressions are equivalent (i.e., when the two expressions name the same number regardless of which value is substituted into them). For example, the expressions y + y + y and 3y are equivalent because they name the same number regardless of which number y stands for.
What you'll learn
- State what it means for two expressions to be equivalent: they produce the same value for every substitution of the variable -- not just one specific value
- Use substitution of at least two values to test whether two expressions might be equivalent, and recognize that a single mismatch is sufficient to prove they are not equivalent
- Confirm equivalence algebraically by simplifying both expressions using properties of operations (distributive property, combining like terms) from 6.EE.A.3
Slides
Step through the lesson, or watch it as a narrated video
Equivalent expressions
✓ Start herePractice
Try it on your own
Animated Videos
Short animated explanations of the key idea • 2 animated videos