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Topic: Algebra Module II is online
Replies: 15   Last Post: Aug 4, 2013 12:35 AM

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Meg Clemens

Posts: 345
Registered: 12/3/04
RE: Algebra Module II is online
Posted: Aug 3, 2013 10:30 AM
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Operations with irrational numbers?

Seeking input: operations w/ radicals--how much is included in CC Alg 1? Alg 2? N.RN.3 (below) is the only standard about radicals. Does 'use properties' imply add/subtract/multiply/rationalize? Module 1 has an exercise that multiplies radicals w/ no instruction in the class notes, yet this is not a previous skill from grade 8.

NYSED issued clarification that simplifying radicals is required for solving equations. I am also assuming this means simplifying fractions w/ radicals in the numerator so that solutions from the quadratic formula can be fully reduced.

N.RN.3 Use properties of rational and irrational numbers. Explain why the sum or product of rational numbers is rational; that the sum of a rational number and an irrational number is irrational; and that the product of a nonzero rational number and an irrational number is irrational.

Interval Notation?

Module 1 discusses the use of interval notation but none of the standards directly include it. Is interval notation in CC Alg 1?

Meg Clemens
Canton Central
NBCT 2002 - 2002

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