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Lesson Planet: Curated OER

#### Imaginary Numbers? What Do You Mean Imaginary?

For Teachers 9th - 12th Standards
Don't worry, this resource actually exists. Scholars learn about imaginary numbers and work on problems simplifying square roots of negative numbers. As an extension, they research the history of imaginary numbers.
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Lesson Planet: Curated OER

#### Classifying Complex Numbers

For Teachers 10th - 12th Standards
Imaginary numbers are a real thing. Scholars learn about complex numbers, real numbers, and imaginary numbers. They classify given numbers as strictly complex, strictly real, or strictly imaginary in an individual or group activity.
Lesson Plan
Lesson Planet: Curated OER

#### Powers and Roots of Complex Numbers

For Teachers 9th - 12th Standards
Explore a few powers of complex numbers numerically and decide if there is a pattern and use parametric equations to represent a complex number graphically. Use De Moivre's theorem to represent the roots of the complex number...
Lesson Plan
Lesson Planet: Curated OER

#### Complex Numbers: Plotting and Polar Form

For Teachers 9th - 12th Standards
Explore the concept of, and use the Ti-Nspire to, convert complex numbers into polar form. Then practice graphing complex numbers in the polar coordinate plane.
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Lesson Planet: Curated OER

#### Complex Numbers

For Teachers 9th - 12th Standards
The class practices, on paper and/or on a TI graphing calculator the concepts of how to add, multiply, divide and subtract complex numbers using the correct property.
Lesson Plan
Lesson Planet: Curated OER

#### Complex Numbers

For Teachers 10th - 12th Standards
Learners are introduced to the concept of imaginary unit and complex numbers. They are taught how to add and subtract complex numbers. Young scholars define a complex number. They comprehend at least two applications of complex numbers....
Lesson Plan
Lesson Planet: Curated OER

#### The Solution is Complex

For Teachers 9th - 12th Standards
Consider complex numbers, roots, and quadratic equations. Use the discriminate as a way to determine the nature of a quadratic's roots. Then discuss the similarities and differences between quadratics with two, one, or no real roots....
Worksheet
Lesson Planet: Curated OER

#### Absolute Value

For Students 11th - 12th
In this absolute value worksheet, students solve 10 different equations that include solving absolute values. First, they determine whether their equation is expressed in the a+bi form. Then, students select the coefficients for a and b....
Lesson Plan
Lesson Planet: Curated OER

#### Complex Numbers and Operations

For Teachers 8th - 10th
In this algebra worksheet, students add, subtract and multiply using complex numbers. They apply the correct property of i as they solve. There are ten questions with an answer key.
Lesson Plan
Lesson Planet: Curated OER

#### Exploring Harmonic Conjugates

For Teachers 9th - 10th
High schoolers investigate harmonic conjugates using Cabri Software or the Ti Calculator to analyze harmonics. They explore different angles measurements as they move their circles around and solve problems.
Lesson Plan
Lesson Planet: Curated OER

#### Trigonometric Form of Complex Numbers

For Teachers 11th - 12th Standards
This lesson is written from the perspective of a student teacher. A step by step lesson in which the class works on the trigonometric form of complex numbers. They convert between trigonometric and complex forms. They will also practice...
Lesson Plan
Lesson Planet: Curated OER

#### As If Numbers Weren't Complex Enough Already!

For Teachers 9th - 12th Standards
The class explores the concept of complex numbers on a website to generate their own Mandelbrot sets. They will practice performing operations with complex numbers and then to get a visual understanding, graph the absolute value of a...
Worksheet
Lesson Planet: Curated OER

#### Complex Numbers

For Students 9th - 12th
In this algebra worksheet, students simplify complex numbers ranging from performing basic operations to distribution with a few combine like terms. There are 44 questions.
Lesson Plan
Lesson Planet: Curated OER

#### Imaginary Numbers

For Teachers 11th
In this Algebra II worksheet, 11th graders explain how every real number is also a complex number.  The one page worksheet contains one problem with solution.
Worksheet
Lesson Planet: Curated OER

#### Complex Numbers

For Students 10th - 11th
In this algebra worksheet, students solve complex numbers using multiplication and division properties. There are 10 questions with an answer key.
Worksheet
Lesson Planet: Curated OER

#### Complex Numbers

For Students 10th - 11th
In this algebra worksheet, students solve complex numbers using multiplication and division properties. There are 10 questions with an answer key.
Worksheet
Lesson Planet: Curated OER

#### Complex Numbers

For Students 11th
In this algebra worksheet, 11th graders solve complex numbers using division. multiplication, addition and subtraction. There are 11 questions with an answer key.
Worksheet
Lesson Planet: Curated OER

#### Complex Numbers

For Students 10th - 12th
In this complex numbers instructional activity, students write numbers in standard form.  They identify real, imaginary and complex numbers.  Students find the absolute value and conjugate of a number.  This two-page instructional...
Lesson Plan
Lesson Planet: Curated OER

#### Complex Numbers

For Teachers 9th - 12th Standards
Students examine complex numbers. In this Algebra II lesson, students investigate two programs that involve complex numbers: the MANDELER Program and SYNDIV program.
Worksheet
Lesson Planet: Curated OER

For Students 10th - 12th Standards
In this complex numbers activity, learners find the sum of complex numbers. This four-page activity contains approximately 20 multi-step problems.
Worksheet
Lesson Planet: Curated OER

#### Quaternions

For Students 11th - 12th
In this quaternions worksheet, students solve and complete 7 different problems. First, they read and identify quaternions as expressions in a given form of ordinary real numbers. Then, students add and subtract a few problems by doing...
Interactive
Lesson Planet: Curated OER

#### Complex Number Division

For Students 9th - 12th
In this online math activity, students practice complex number division using positive and negative integers. When complete, students submit their answers and get instant feedback regarding their accuracy.
Interactive
Lesson Planet: Curated OER

#### Name the Property

For Students 10th - 12th Standards
For this property worksheet, students examine given problems containing complex numbers.  They identify the property used in the problem.  This one-page worksheet contains 10 problems.
Interactive
Lesson Planet: Curated OER