Digital SAT Math
Lesson Plan
Exponent rules and radical-exponent conversion
Goals / Objectives
Rewrite expressions containing exponents or radicals in equivalent forms, using the exponent rules with integer, zero, negative, rational and variable exponents
Derive the product, quotient, power-of-a-power and power-of-a-product rules from repeated multiplication, and identify expressions they do not combine ($x^3 + x^3$, $2^3 \cdot 3^2$)
Explain $b^0 = 1$ and $b^{-n} = \frac{1}{b^n}$ ($b \ne 0$) as the values that keep the quotient rule true
Convert between rational-exponent and radical form in both directions using $a^{m/n} = (\sqrt[n]{a})^m = \sqrt[n]{a^m}$, and evaluate rational powers of numbers
Simplify square and cube roots by extracting the largest perfect-power factor
Standards
"Make strategic use of algebraic structure and the properties of operations to identify and create equivalent expressions" "• including rewriting simple rational expressions, rewriting expressions with rational exponents in radical form, and factoring polynomials not included in the preceding bullet."
Academic Vocabulary
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Remediation
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Modeling
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Homework
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