Digital SAT Math
Lesson Plan
Simplifying and operating with rational expressions
Goals / Objectives
Simplify, multiply, divide, add and subtract rational expressions, stating the excluded values of the result
Explain cancellation as multiplication by a factor equal to 1, and identify when nothing cancels
State excluded values from the original denominators, including one hidden by a cancelled factor or created by a divisor's numerator
Add and subtract rational expressions using the LCD built from factored denominators
Simplify a compound fraction by treating the main fraction bar as division
Distinguish rewriting an expression from solving an equation, and explain why denominators may not be cleared in an expression
Standards
"• including rewriting simple rational expressions, rewriting expressions with rational exponents in radical form, and factoring polynomials not included in the preceding bullet." "Make strategic use of algebraic structure and the properties of operations to identify and create equivalent expressions:"
Academic Vocabulary
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Remediation
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Modeling
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Homework
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