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# Complex Numbers Review

Lesson 7 of 8

## Objective: SWBAT demonstrate understanding of complex numbers by participating in a class review.

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

*55 minutes*

#### Set the Stage

*5 min*

Because complex numbers are fairly abstract for students to understand I let today be mostly a whole-class review, with individual students taking/organizing their own notes. I begin by advising my students to get any handouts or notes they already have ready, as well as graphic organizers and/or lined paper for notetaking. Some students find a Venn diagram or the "Bubbles" graphic organizer helpful for sorting out the components of complex numbers. I remind them that this review is their opportunity to have any remaining questions or confusion addressed before they get to show their stuff on the assessment. I also tell them that the assessment will be individual and will be in standardized test format - that is, multiple choice questions. My video explains why I feel it's important to let my students know what to expect.

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#### Put it into Action

*45 min*

I spend the majority of this class period walking my students through each of the lessons we've covered, answering questions and and working through example problems as needed. I generally start by putting one or two examples of complex numbers on the board and challenge my students to identify the real and imaginary components and simply if possible. **(MP1)** I continue through all the lessons we've covered in this unit, challenging my students and encouraging those who can't quite meet a specific challenge to add that to his/her review notes. I've created a copy of the Complex Number Review Outline I use except that I will add notes to the outline that are specific for this year's students as I teach this unit . I don't give this directly to my students because I think it's important for them to determine what things they need more help with and which things they understand. I also remind them about the complex numbers educreations video that they can access to help with their review.

#### Resources

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#### Wrap it Up

*5 min*

I wrap up this review by asking my students to write any remaining questions or concerns on a notecard which I promise to have ready to return by the end of the day. This gives them a bit of additional reassurance that they have my support if they need it.

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- UNIT 1: First Week!
- UNIT 2: Algebraic Arithmetic
- UNIT 3: Algebraic Structure
- UNIT 4: Complex Numbers
- UNIT 5: Creating Algebraically
- UNIT 6: Algebraic Reasoning
- UNIT 7: Building Functions
- UNIT 8: Interpreting Functions
- UNIT 9: Intro to Trig
- UNIT 10: Trigonometric Functions
- UNIT 11: Statistics
- UNIT 12: Probability
- UNIT 13: Semester 2 Review
- UNIT 14: Games
- UNIT 15: Semester 1 Review