# ALEX Lesson Plan

## Complex Numbers Solutions

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This lesson provided by:
 Author: Morgan Boyd Organization: Retirement
General Lesson Information
 Lesson Plan ID: 35678 Title: Complex Numbers Solutions Overview/Annotation: This lesson is designed to teach the students that some quadratic equations will have imaginary solutions. The lesson will examine the concept of complex numbers in terms i. The student will use the quadratic formula to solve the equations and write the the solutions in the form a +bi.This lesson results from the ALEX Resource Gap Project.
Associated Standards and Objectives
Content Standard(s):
 Mathematics MA2015 (2016) Grade: 9-12 Algebra II 5 ) (+) Extend polynomial identities to the complex numbers. Example: Rewrite x2 + 4 as (x + 2i)(x - 2i). [N-CN8] Mathematics MA2015 (2016) Grade: 9-12 Algebra II with Trigonometry 5 ) (+) Extend polynomial identities to the complex numbers. [N-CN8] Example: Rewrite x2 + 4 as (x + 2i)(x - 2i).

Local/National Standards:

Primary Learning Objective(s):

The student will be able to solve quadratic equations using the quadratic formula.

The student will be able to write complex solutions in the form a + bi.