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Lesson Plan
Curated OER

Landscape Confection

For Teachers 1st - 5th
Young scholars engage in a lesson about the creation of landscape paintings. This activity is meant to be done before visiting a museum. They examine the works of art in order to become familiar with the style and recreate them. Then...
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Unknown Type
Khan Academy

Khan Academy: Plot Numbers on the Complex Plane

For Students 9th - 10th Standards
Given a complex number, plot its corresponding point on the complex plane. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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eBook
CK-12 Foundation

Ck 12: Algebra Ii: 1.6 the Complex Plane

For Students 9th - 10th Standards
This section includes operations with imaginary and complex numbers and plotting numbers on the complex plane.
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Activity
Math Medics

S.o.s. Math: The Complex Plane

For Students 9th - 10th Standards
Contains a lesson and practice exercises about complex numbers in a complex plane.
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Activity
Larson Texts

Larson Precalculus: Operations of Complex Numbers in the Complex Plane [Pdf]

For Students 9th - 10th Standards
A 3-page handout with examples and exercises in adding, subtracting, and multiplying complex numbers in the complex plane, as well as finding complex conjugates.
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Handout
Wolfram Research

Wolfram Math World: Complex Plane

For Students 9th - 10th Standards
This math site gives a visual representation of a complex plane with several values plotted, the site explains that any complex number can be plotted on such a plane. The site contains links to related words and topics.
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Graphic
Other

The Complex Plane Examples

For Students 9th - 10th Standards
An advanced look into the complex plane, with detailed examples.
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Graphic
Other

The Complex Plane

For Students 9th - 10th Standards
Contains detailed information about the complex plane, including graphs to demonstrate examples.
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Handout
Clark University

Clark University: Complex Numbers: The Complex Plane

For Students 9th - 10th Standards
A number of different ways to approach complex numbers and operations with them.
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Graphic
Stanford University

Standford University: The Complex Plane

For Students 9th - 10th Standards
This resource contains both general and detailed information about the complex plane.
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Unknown Type
Khan Academy

Khan Academy: Graphically Add and Subtract Complex Numbers

For Students 9th - 10th Standards
Add or subtract complex numbers, and plot the result in the complex plane. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Unit Plan
CK-12 Foundation

Ck 12: Complex Numbers

For Students 10th - 12th Standards
[Free Registration/Login may be required to access all resource tools.] This lesson covers the powers of i, and adding and subtracting complex numbers, as well as how to plot them in the complex plane. Students examine guided notes,...
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Graphic
Stanford University

The Complex Plane (Standford University)

For Students 9th - 10th Standards
Contains both general and detailed information about the complex plane.
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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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Handout
Clark University

Clark University: Dave's Short Trig Course: Complex Numbers: Absolute Value

For Students 9th - 10th Standards
Contains detailed information on absolute values for complex numbers.
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Unknown Type
Khan Academy

Khan Academy: Distance of Complex Numbers

For Students 9th - 10th Standards
Given two complex numbers (either algebraically or graphically), find their distance. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Unit Plan
CK-12 Foundation

Ck 12: Quadratic Formula and Complex Sums

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] Represent complex numbers on the complex plane in rectangular and polar form (including real and imaginary numbers), and explain why the rectangular and polar forms...
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Unit Plan
CK-12 Foundation

Ck 12: Polar Form of Complex Numbers

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] Represent addition, subtraction, multiplication, and conjugation of complex numbers geometrically on the complex plane; use properties of this representation for...
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Unit Plan
CK-12 Foundation

Ck 12: Polar Form of Complex Numbers

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] Calculate the distance between numbers in the complex plane as the modulus of the difference, and the midpoint of a segment as the average of the numbers at its...
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Activity
University of California

Ucla: Complex Plane

For Students 9th - 10th Standards
This site from UCLA provides great information on the complex plane. The main feature of the site is an applet that illustrates the complex plane. It is a great learning tool in dealing with the features of the complex plane.
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Unit Plan
CK-12 Foundation

Ck 12: Polar Form of a Complex Number

For Students 11th - 12th Standards
[Free Registration/Login may be required to access all resource tools.] Here you will learn how to convert complex numbers from rectangular form to polar form. You will also explore the graphs of complex numbers on a polar graph.
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Unknown Type
Khan Academy

Khan Academy: Angle of Complex Numbers

For Students 9th - 10th Standards
Given a complex number of the form a+bi, find its angle. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Unknown Type
Khan Academy

Khan Academy: Complex Numbers From Absolute Value & Angle

For Students 9th - 10th Standards
Given the absolute value and the angle of a complex number, express the number in the form a+bi. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Unit Plan
CK-12 Foundation

Ck 12: Complex Numbers

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] A collection of resources that explain complex numbers and how to do arithmetic with them.