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- HSN-CN.A.1Know there is a complex number i such that i<sup>2</sup> = -1, and every complex number has the form a + bi with a and b real.
- HSN-CN.A.2Use the relation i<sup>2</sup> = -1 and the commutative, associative, and distributive properties to add, subtract, and multiply complex numbers.
- HSN-CN.A.3(+) Find the conjugate of a complex number; use conjugates to find moduli and quotients of complex numbers.

Arithmetic with Complex Numbers

Algebra II

Â» Unit:

Polynomial Theorems and Graphs

Big Idea:Imaginary numbers are used to represent quantities that have two parts; working with these numbers is similar to working with polynomial expressions.

Complex Numbers and Quadratic Equations Test

Algebra II

Â» Unit:

Complex Numbers and Quadratic Equations

Big Idea:Test student on their knowledge of complex numbers and quadratic equations..

Roots of Polynomial Functions - Day 2 of 2

12th Grade Math

Â» Unit:

Polynomial and Rational Functions

Big Idea:Find complex roots and learn about the history of imaginary numbers.

Polynomials with Complexesâ¦ Complex Zeros that is!

12th Grade Math

Â» Unit:

Polynomial Functions and Equations

Big Idea:Personal response systems keep students engaged and monitor their current progress as they find all zeros of a polynomial function.

Test Review

12th Grade Math

Â» Unit:

Polynomial Functions and Equations

Big Idea:Students will work together and ask questions on their test review to prepare for tomorrow's unit test.

Dividing Complex Numbers

Algebra II

Â» Unit:

The Complex Number System

Big Idea:Division of complex numbers is best understood in its relation to multiplication and transformations of the complex plane.

Review of Complex Numbers

12th Grade Math

Â» Unit:

Vectors and Complex Numbers

Big Idea:How is a complex number in standard form similar to a vector in unit vector form?

HSN-CN.A.1

Know there is a complex number i such that i^{2} = -1, and every complex number has the form a + bi with a and b real.

HSN-CN.A.2

Use the relation i^{2} = -1 and the commutative, associative, and distributive properties to add, subtract, and multiply complex numbers.

HSN-CN.A.3

(+) Find the conjugate of a complex number; use conjugates to find moduli and quotients of complex numbers.