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Distinguish between rational and irrational numbers. Show that any number that can be expressed as a fraction is a rational number.
Clarifications:
Essential Understandings
Concrete:
- Use manipulatives to represent whole numbers as a fraction (e.g., 3 whole circles each divided in half is equal to 6/2)
- Use manipulatives to represent a fraction.
- Understand that the use of 3.14 for π is a rounded, approximated number (e.g., use 22/7 in a calculator to approximate π).
- Identify the symbol for π in writing and on a calculator.
- Identify 3.14 as π.
- Understand the following concepts, symbols, and vocabulary: irrational numbers, rational numbers, fraction, decimal, π.
General Information
Number: MAFS.8.NS.1.AP.1a
Category: Access Points
Date Adopted or Revised:
06/14
Cluster:
Know that there are numbers that are not rational, and approximate them by rational numbers. (Supporting Cluster) :
Clusters should not be sorted from Major to Supporting and then taught in that order. To do so would strip the coherence of the mathematical ideas and miss the opportunity to enhance the major work of the grade with the supporting clusters.
Related Standards
This access point is an alternate version of the following benchmark(s).
Related Courses
This access point is part of these courses.
1205050: M/J Accelerated Mathematics Grade 7
1205070: M/J Grade 8 Pre-Algebra
1204000: M/J Foundational Skills in Mathematics 6-8
1205510: Explorations in Mathematics 2
1200410: Mathematics for College Success
1200700: Mathematics for College Algebra
7812030: Access M/J Grade 8 Pre-Algebra
7912115: Fundamental Explorations in Mathematics 2
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