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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.

Complex Numbers Day 1 of 2

Algebra II

Â» Unit:

Complex Numbers and Quadratic Equations

Big Idea:Multiple models are use to represent computations with complex numbers.

Algebra II Jeopardy

Algebra II

Â» Unit:

Games

Big Idea:Play Jeopardy to fill those odd days before break or during homecoming week with meaningful mathematical activities like this Jeopardy game.

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..

Completing the Square Day 1 of 2

Algebra II

Â» Unit:

Complex Numbers and Quadratic Equations

Big Idea:Compare and contrast the effectiveness of multiple methods of solving quadratic equations.

Simplifying Square Roots

Algebra II

Â» Unit:

Complex Numbers and Quadratic Equations

Big Idea:Area models introduce this Common Core transitional lesson on simplifying square roots.

Quadratic Formula

Algebra II

Â» Unit:

Complex Numbers and Quadratic Equations

Big Idea:Build the concept of the quadratic formula by deriving it from completing the square.

Imaginary Numbers Day 1 of 2

Algebra II

Â» Unit:

Complex Numbers and Quadratic Equations

Big Idea:Repeated reasoning is a central feature in this lesson.

Completing the Square Day 2 of 2

Algebra II

Â» Unit:

Complex Numbers and Quadratic Equations

Big Idea:Compare and contrast the effectiveness of multiple methods of solving quadratic equations.

Complex Numbers Day 2 of 2

Algebra II

Â» Unit:

Complex Numbers and Quadratic Equations

Big Idea:Multiple models are use to represent computations with complex numbers.

Imaginary Numbers Day 2 of 2

Algebra II

Â» Unit:

Complex Numbers and Quadratic Equations

Big Idea:Repeated reasoning is a central feature in this lesson.

Complex Numbers and Quadratic Equations Review

Algebra II

Â» Unit:

Complex Numbers and Quadratic Equations

Big Idea:Students create a personal study plan as they review complex numbers and quadratic equations.

Multiplying Complex Numbers, Day 1 of 4

Algebra II

Â» Unit:

The Complex Number System

Big Idea:Students explore and explain correspondences between numerical and graphical representations of arithmetic with complex numbers.

Multiplying Complex Numbers, Day 2 of 4

Algebra II

Â» Unit:

The Complex Number System

Big Idea:Students explore and explain correspondences between numerical and graphical representations of arithmetic with complex numbers.

Unit Test

Algebra II

Â» Unit:

Imagine This! Imaginary and Complex Numbers

Big Idea:Students will persevere through a unit assessment by utilizing the skills they have acquired (MP1).

Complex Numbers Review

Algebra II

Â» Unit:

Complex Numbers

Big Idea:Students help design their own review outline focusing on what they need to study instead of cramming on everything!

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.