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Worksheet
Easy Work Sheet

Easy Worksheets: Number Sets

For Students 9th - 12th Standards
In this number sets worksheet, students solve 6 multiple choice problems. Students determine the number set that the given number belongs to such as whole, integers, rational, real, complex, etc.
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Worksheet
Kuta Software

Properties of Complex Numbers

For Students 11th - 12th Standards
In this learning exercise, students evaluate complex (signed and imaginary) numbers.  In addition, they are asked to graph complex numbers as well as identify a complex number on a presented graph.
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Worksheet
Math About

Introduction to Complex Numbers

For Students 10th - 12th Standards
In this complex number worksheet, students explore the properties of imaginary numbers to find the square roots of negative numbers. Explanations and examples are given prior to the exercise. This two-page worksheet contains ten problems.
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Lesson Plan
Curated OER

Steady-State Circuit Analysis & Filter Design

For Teachers 9th - Higher Ed Standards
Scholars identify how the TI-89 implements phasors to perform sinusoidal steady-state analysis. The focus is on how to enter and display complex numbers. They also show how a typical steady-state application how to use the Numeric Solver...
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Lesson Plan
Curated OER

Complexity

For Teachers 10th - 12th Standards
Students perform mathematical operations on complex numbers. After a lecture/demo, students utilize a worksheet imbedded in this plan to gain practice performing operations on complex numbers.
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Activity
University of Saskatchewan (Canada)

University of Saskatchewan: Complex Numbers

For Students 9th - 10th Standards
The University of Saskatchewan's Department of Mathematics and Statistics provides high school students with an online tutorial on complex numbers. Students can access accompanying examples within the tutorial. After you can also test...
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Activity
Varsity Tutors

Varsity Tutors: Hotmath: Practice Problems: Complex Numbers 1

For Students 9th - 10th Standards
Twenty-six problems present a variety of practice working with complex numbers. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click the "View Solution" button to...
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Unit Plan
Texas A&M University

Wtamu Virtual Math Lab: College Algebra: Complex Numbers

For Students 9th - 10th Standards
Use this tutorial to learn what imaginary and complex numbers are, how to write them, and how to perform operations with them. Offers step-by-step examples, video explanations of the examples, and practice questions with answers.
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Activity
Oswego City School District

Regents Exam Prep Center: Absolute Value of Complex Numbers

For Students 9th - 10th Standards
This tutorial presents the absolute value of complex numbers using formulas, graphs, and examples. There are practice problems and a teacher resource page to assist students in understanding the concept.
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Unit Plan
Oswego City School District

Regents Exam Prep Center: Complex Numbers

For Teachers 9th - 10th Standards
A wealth of material to help you plan classroom instruction on complex numbers: several lessons that cover the number i, square roots of negative numbers, and operations involving complex numbers; practice activities, some of which...
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Handout
Paul Dawkins

Paul's Online Notes: Algebra: Preliminaries: Complex Numbers

For Students 9th - 10th Standards
This math tutorial features notes and examples that illustrate complex numbers including standard form, adding, subtracting, multiplying and dividing them.
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Handout
Purple Math

Purplemath: Complex Numbers: Introduction

For Students 9th - 10th Standards
This website provides an in-depth lesson on complex numbers. You learn about simplifying, adding, and multiplying complex numbers by viewing example problems that are worked through step-by-step. Continue on to pages 2 and 3 which...
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Lesson Plan
National Council of Teachers of Mathematics

Nctm: Illuminations: Axonometry: Applying Complex Numbers to Art

For Teachers 9th - 10th Standards
Axonometry is an illumination that has students discover relationships between complex numbers and graphing. Students make connections between algebraic and graphical representations of a complex number.
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Unit Plan
Cuemath

Cuemath: Complex Numbers

For Students 9th - 10th Standards
A comprehensive guide for learning all about complex numbers with definitions, operations on complex numbers, solved examples, and practice questions.
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Handout
Wolfram Research

Wolfram Math World: Imaginary Number

For Students 9th - 10th Standards
Contains a brief definition of an imaginary number. Includes special links and topic search engine.
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Handout
Wolfram Research

Wolfram Math World: Complex Number

For Students 9th - 10th Standards
This MathWorld site give a thorough definition of complex numbers. The first paragraph explains the fundamental knowlege base and notation for complex numbers. The site discusses complex numbers in the phasor form, de Moivre's identity,...
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Activity
Math Medics

S.o.s. Math: The Complex Numbers

For Students 9th - 10th Standards
This lesson may be useful to both persons with prior knowledge of complex numbers and those without. The lesson begins with the definition of complex numbers and its notation, then gives the rules of arithmetic for them with exercises....
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Activity
Ministry of Education and Universities of the Region of Murcia (Spain)

Ministerio De Educacion Y Ciencia: Numeros Complejos

For Students 9th - 10th Standards
In Spanish. In this unit you will be able to practice interactively the concept of complex numbers in binomial and polar forms.
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Unknown Type
McGraw Hill

Glencoe Mathematics: Quiz on the Complex Plane and Polar Form of Complex Numbers

For Students 9th - 10th Standards
The online assessment demonstrates knowledge of Trigonometry. The questions test students on the complex plane and polar form of complex numbers.
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Unknown Type
McGraw Hill

Glencoe Mathematics: Quiz on Powers and Roots of Complex Numbers

For Students 9th - 10th Standards
The online assessment exhibits knowledge of advanced mathematical concepts in Trigonometry. The questions evaluate students on powers and roots of complex numbers.
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Handout
Johan Claeys

Math Abundance: An Introduction to Complex Numbers

For Students 9th - 10th Standards
A complete explanation of complex numbers that includes lessons on adding, subtracting, multiplying, and dividing them, as well as more advanced topics.
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Activity
Discovery Education

Discovery Education: Web Math: Adding Complex Numbers

For Students 9th - 10th Standards
WebMath contains a program that calculates the addition of complex numbers by inputting the problem.
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Activity
Discovery Education

Discovery Education: Web Math: Multiplying Complex Numbers

For Students 9th - 10th Standards
WebMath contains a program that calculates the multiplication of two or more complex numbers by inputting the problem.
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Handout
University College London

University College London: Complex Numbers: Real and Imaginary Parts

For Students 9th - 10th Standards
Contains a brief summary about the real and imaginary parts of complex numbers.