Cluster Information
Title:
Generate equivalent expressions and perform operations with expressions involving exponents, radicals or logarithms.
Subject:
Mathematics (B.E.S.T.)
Strand
Number Sense and Operations
Cluster Access Points
This cluster includes the following Access Points.
- MA.912.NSO.1.AP.1 : Evaluate numerical expressions involving rational exponents.
- MA.912.NSO.1.AP.2 : Identify equivalent algebraic expressions using properties of exponents.
- MA.912.NSO.1.AP.3 : Using properties of exponents, identify equivalent algebraic expressions involving radicals and rational exponents. Radicands are limited to monomial algebraic expression.
- MA.912.NSO.1.AP.4 : Apply previous understanding of operations with rational numbers to add and subtract numerical radicals that are in radical form.
- MA.912.NSO.1.AP.5 : Add and subtract algebraic expressions involving radicals. Radicands are limited to monomial algebraic expressions.
- MA.912.NSO.1.AP.6 : Given a numerical logarithmic expression, identify an equivalent numerical expression using the properties of logarithms or exponents.
- MA.912.NSO.1.AP.7 : Given an algebraic logarithmic expression, identify an equivalent algebraic expression using the properties of logarithms or exponents.
Cluster Resources
Vetted resources educators can use to teach the concepts and skills in this topic.
Original Student Tutorial
- The Radical Puzzle: Learn to rewrite products involving radicals and rational exponents using properties of exponents in this interactive tutorial.
Formative Assessments
- Roots and Exponents: Students are asked to rewrite the square root of five in exponential form and justify their choice of exponent.
- Rational Exponents and Roots: Students asked to show that two forms of an expression (exponential and radical) are equivalent.
- Rational Exponents - 4: Students are asked to rewrite expressions involving radicals and rational exponents in equivalent forms.
- Rational Exponents - 2: Students are asked to convert numerical expressions from exponential to radical form.
- Rational Exponents - 3: Students are asked to convert a product of a radical and exponential expression to a single power of two.
- Rational Exponents - 1: Students are asked to convert numerical expressions from radical to exponential form.
- College Costs: Students are asked to transform an exponential expression so that the rate of change corresponds to a different time interval.
- Population Drop: Students are asked to use the properties of exponents to show that two expressions are equivalent and compare the two functions in terms of what each reveals.
Lesson Plans
Problem-Solving Tasks
- Newton's Law of Cooling: The coffee cooling experiment is a popular example of an exponential model with immediate appeal. The model is realistic and provides a good context for students to practice work with exponential equations.
- Seeing Dots: The purpose of this task is to identify the structure in the two algebraic expressions by interpreting them in terms of a geometric context. Students will have likely seen this type of process before, so the principal source of challenge in this task is to encourage a multitude and variety of approaches, both in terms of the geometric argument and in terms of the algebraic manipulation.