A2.A.1.6 Solve common and natural logarithmic equations using the properties of logarithms.
In a Nutshell
Students will apply the properties of logarithms, used for expanding and condensing logarithms, to solve logarithmic equations. They will check their results for extraneous solutions and understand why it is necessary that they check.
Student Actions
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Teacher Actions
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Students will learn efficient procedures and algorithms and develop procedural fluency for expanding and condensing logarithms according to the properties of logarithms.
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Students will develop accurate procedural fluency for solving logarithmic equations using the properties of logarithms while demonstrating flexible use of strategies and methods.
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Students will analyze the parts of a logarithmic equation, develop strategies for solving logarithmic equations and identify entry points to begin the search for a solution.They will find methods to verify their answers in context of a logarithmic equation and will always question the reasonableness of solutions and whether some of the solutions are extraneous.
- Students will develop a deep and flexible conceptual understanding of the inverse relationship between exponents and logarithms.
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Anticipate what students might struggle with while learning procedures used to solve logarithmic equations and be prepared to support them productively through the struggle.
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Implement mathematical tasks that provide students opportunities to build fluency of procedures and algorithms for solving logarithmic equations using the properties of logarithms.
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Select tasks that provide multiple entry points for solving logarithmic equations.
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Pose purposeful questions that allow students to discuss and explain why some solutions are extraneous.
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Focus students’ attention on the structure or essential features, i.e. bases, of exponents and logarithms and how they are related.
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Key Understandings
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Misconceptions
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Procedural:
Conceptual:
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OKMath Framework Introduction
Algebra 2 Grade Introduction
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