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Common Core Math

High School Number and Quantity Teaching and Learning Resources

Domain: RN: The Real Number System

Common Core Math

Select the cluster for resources on this page:

  • RN-A: Extend the properties of exponents to rational exponents

  • RN-B: Use properties of rational and irrational numbers

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RN-A: Extend the properties of exponents to rational exponents

Standards:

 

Technology-enhanced investigations:

Mathwords.com: Math Dictionary: Key vocabulary for this domain.  Use with RN-A, RN-B:

exponent rules irratiional numbers radical rules rational numbers
integers radical rational exponents real numbers

 

Study.com: Algebra:  Each of the following chapters includes video lessons with sample problems and a short quiz in each video.  Multiple choice chapter exams are included.

  • Foundations and Linear Equations: nine video lessons. The first video, What are the Different Types of Numbers?, provides a review of subsets of the real number system. Use with RN-A.1.
  • Exponents and Polynomials: 10 video lessons.  The chapter begins with the five main properties of exponents, how to define a zero and negative exponent, simplifying expressions with exponents, rational exponents, and simplifying expressions with rational exponents.  Use with RN-A.1 and RN-A.2.

LearnZillion:

  • Lesson set: Relate rational exponents to integer exponents, use radical notation: Five video lessons: Apply exponents to physical models, relate fractional exponents to integer exponents, solve for variables with rational exponents; perform operations and solve equations with rational exponents.  Aligns with RN-A.1.
  • Lesson set: Rewrite expressions involving radicals and rational exponents: Five video lessons: Simplify square roots using physical models, simplify radical expressions by factoring, estimate the value of square roots, write equivalent radical and rational exponent expressions, explore volume using radical and rational exponent expressions.  Aligns with RN-A.2.

Purple Math: Fractional (Rational) Exponents: Basic theory

West Texas A & M University: Virtual Math Lab:

  • College Algebra: Tutorial 5: Rational Exponents: After completing this tutorial, learners should be able to: 1. Rewrite a rational exponent in radical notation. 2. Simplify an expression that contains a rational exponent. 3. Use rational exponents to simplify a radical expression. Video demonstrations and practice problems are included in above.
  • Intermediate Algebra: Tutorial 38: Rational Exponents: After completing this tutorial, learners should be able to: 1. Rewrite a rational exponent in radical notation. 2. Simplify an expression that contains a rational exponent. 3. Use rational exponents to simplify a radical expression. Practice problems are included in above.

Zweigmedia.com:  Algebra Review Tutorials and examples using fill-in or multiple choice to test understanding.  Learners can also choose to do game versions of some topics.  Use with RN-A:

Multiple Choice:

MathBitsNotebook: Algebra 1: Exponents includes lessons, then practice problems on integer exponent skills (numeric and algebraic) and rational fraction exponent skills.  Use with RN-A.1 and RN-A.2.

OpenEd:

  • Rational exponents: 5 questions combine multiple choice and free response.  Includes related review resources.  Aligns with RN-A.1.
  • Rewriting expressions with exponents: 5 questions combine multiple choice and free response.  Includes related review resources.  Aligns with RN-A.2.

Constructed-response:

Hot Math: Rational Exponents: Practice problems with rational exponents.  Hints and solution steps provided.

Khan Academy: Practice questions with videos.

Math Warehouse: Simplify fraction exponents: Formula and examples of how to simplify fraction exponents, including practice problems for learners.

University of Hawaii: Math 110 College Algebra notes: Chapter P.3: Rational Exponents and Radicals: Within this lesson with worked examples are multiple exercises for learners to complete (paper-pencil needed) on simplifying expressions with rational exponents and radicals.

Performance tasks:

Illustrative Mathematics:

Mathematics Vision Project, Secondary 2 Student Edition:

  • Module 3: Quadratic Equations: This module contains 10 classroom tasks.  Real number standards addressed in Module 3 include  RN-A.1, RN-A.2 in tasks 1-4 and RN-B.3 within tasks 9-10.

 

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RN-B: Use properties of rational and irrational numbers

Standards:

 

Technology-enhanced investigations:

LearnZillion: Lesson set: Identify rules for adding and multiplying rational and irrational numbers: Four video lessons: Distinguish between rational and irrational numbers, predict the result of adding and subtracting rational and irrational numbers, multiply rational and irrational numbers, rationalize the denominator.  Aligns with RN-B.3.

Mathematics Assessment Project, CLASSROOM CHALLENGES, Formative Assessment Lessons: Task 424: Rational and Irrational Numbers 1 and Task 434: Rational and Irrational Numbers 2.  These lessons relate to the standard RN-B.3: Use rational and irrational numbers.

Multiple-choice:

Khan Academy: Practice questions with videos.

MathBitsNotebook: Algebra 1: Rationals and Irrationals includes lessons on rationals and irrationals, sum/product of two rationals, two irrationals, rationals and irrationals, then practice problems on rational/irrational values, and a speedometer quiz game on these concepts.  Use with RN-B.3.

OpenEd: Sum/product of rationals: 5 questions combine multiple choice and free response.  Includes related review resources.  Aligns with RN-B.3.

Shmoop: MATH.N-RN.3 includes a quiz with sums and products involving radicals and problems illustrating RN-B.3.

Constructed-response:

 

Performance tasks:

Illustrative Mathematics:

Mathematics Assessment Project: Standards: High School: Number and Quantity: The Real Number System: http://map.mathshell.org/stds.php?standardid=1300

Mathematics Vision Project, Secondary 2 Student Edition:

  • Module 3: Quadratic Equations: This module contains 10 classroom tasks.  Real number standards addressed in Module 3 include  RN-A.1, RN-A.2 in tasks 1-4 and RN-B.3 within tasks 9-10.

 

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