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Lesson Plan
Alabama Learning Exchange

Add, Subtract, and Multiply Matrices

For Students 9th - 12th Standards
Introduce the concept of matrices with a pre-designed instructional activity. Learners watch video lessons to learn the ins and outs of adding, subtracting, and multiplying matrices. Using provided problems, they practice each operation...
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Lesson Plan
Alabama Learning Exchange

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...
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Lesson Plan
Curated OER

Woody Sine

For Teachers 9th - 12th
Students explore the concept of sine. In this sine lesson, students create a sine graph from tooth picks. Students create a unit circle with tooth pick length radius. Students then take the tooth picks from the unit circle and put them...
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Lesson Plan
Curated OER

Reference Angles

For Teachers 9th - 12th Standards
Learn how to measure the reference angles in degrees and radians.  Young scholars find reference angles that are coterminal with a given angle.
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Lesson Plan
Curated OER

Name That Tune: Matching Musical Tones Through Waveform Analysis

For Teachers 9th - 12th Standards
Pupils detect the waveform of musical notes to determine the code for the "safe" in this forensics simulation lesson. They use a microphone and tuning forks along with Vernier EasyData on their graphing calculator to analyze five musical...
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Lesson Plan
Alabama Learning Exchange

Writing Word Equations

For Teachers 9th - 12th Standards
Students explore the concept of chemical formulas.  In this chemical formula instructional activity, students watch a video about balancing chemical equations.  Students conduct an experiment using silver nitrate and sodium phosphate. ...
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Lesson Plan
Curated OER

Angles in Standard Positions

For Teachers 9th - 11th
Students identify positive and negative angles using the Unit Circle. In this pre-calculus lesson, students identify the different angles on a unit circle using the coordinate plane and the four different quadrants as a guide. They...
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eBook
CK-12 Foundation

Ck 12: Algebra Ii: 4.2 Right Triangle Trig Extended to Circles With a Model

For Students 9th - 10th Standards
This section explores the relationship between right triangles, circles, and trigonometry. It investigates how a right triangle that is set inside a circle and rotates around the circle is connected to trigonometric functions and their...
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Unit Plan
Khan Academy

Khan Academy: Algebra Ii: Construct Sinusoidal Functions

For Students 9th - 10th Standards
Given a few features of a sinusoidal function, find its formula. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Handout
Purple Math

Purplemath: Practical Algebra Lessons

For Students 9th - 10th Standards
Pre-Algebra and algebra lessons, from negative numbers through Pre-Calculus. Grouped by level of study. Lessons are practical in nature, informal in tone, and contain many worked examples and warnings about problem areas and probable...
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Handout
Oswego City School District

Regents Exam Prep Center: Nys Mathematics Glossary: Algebra 2 & Trig [Pdf]

For Teachers 9th - 10th
The glossary consists of mathematical terms used in algebra and trigonometry. Definitions and examples are included. The resource is intended for teacher use only.
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Unit Plan
CK-12 Foundation

Ck 12: Algebra: Solving Linear Systems Using Matrices and Technology

For Students 10th - 12th Standards
[Free Registration/Login may be required to access all resource tools.] This lesson covers using a graphing calculator and matrices to solve a system of equations.
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eBook
CK-12 Foundation

Ck 12: Precalculus Concepts 2.0

For Students 10th - 12th Standards
A complete high school Precalculus Concepts course. Includes 'Related Modalities' for each lesson that teach the same concept in different ways. The text materials follows Algebra II and comes before Calculus or Statistics. The content...
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Unit Plan
CK-12 Foundation

Ck 12: Algebra: Exponential Growth

For Students 10th - 12th Standards
[Free Registration/Login may be required to access all resource tools.] This lesson covers how to analyze and graph exponential growth functions.
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Whiteboard
ClassFlow

Class Flow: Trigonometric Equations With Multiple Angles

For Teachers 9th - 10th
[Free Registration/Login Required] Students will use a number of strategies (including Algebra II and properties of conjunction techniques) to find all solutions for trigonometric equations using multiple angles.
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Activity
Math Medics

S.o.s. Math: Measure of an Angle

For Students 9th - 10th Standards
This lesson gives a tutorial on the measure of an angle. Includes sample problems and solutions.
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Unit Plan
Khan Academy

Khan Academy: Amplitude of Sinusoidal Functions From Equation

For Students 9th - 10th
Given the formula of a sinusoidal function, determine its amplitude. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.