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Learning Goal
‹2 of 2 in this cluster
Perform rational expression operations
Start lessonBegins with Rational expression ops · Slides
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.
HSA.APR.D.7
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What you'll learn
- Multiply and divide rational expressions by multiplying numerators and denominators (or multiplying by the reciprocal), simplifying by canceling common polynomial factors
- Add and subtract rational expressions with the same denominator by combining numerators
- Add and subtract rational expressions with different denominators by finding the least common denominator (LCD) and building equivalent fractions
- State and apply domain restrictions: identify x-values that make any denominator zero and must be excluded
- Explain the analogy between rational number arithmetic and rational expression arithmetic, using this to justify each operation
Review first:
Slides
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1
Rational expression ops
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