Whiteboard
ClassFlow

Class Flow: Trigonometric Functions

For Teachers 9th - 10th Standards
[Free Registration/Login Required] After a quick review of properties in Algebra- addition property of equality and multiplication property of equality- students are guided through all solutions using numerous strategies including back...
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Other

Interactive Trigonometry

For Students 9th - 10th Standards
Resource contains interactive programs that can be manipulated and animation to help students grasp basic concepts in trigonometry.
Activity
Interactive Mathematics

Interactive Mathematics: Trigonometric Functions

For Students 9th - 10th
Just about everything you need to know about trigonometry can be found here. Interactive examples and demonstrations help to enhance the lessons. Although not required, the tutorial uses Live Math and Scientific Notebook.
Activity
Interactive Mathematics

Interactive Mathematics: Trigonometric Functions

For Students 9th - 10th Standards
This is a excellent review lesson about trigonometric functions of any angle. Good examples here.
Activity
Interactive Mathematics

Interactive Mathematics: Trigonometric Functions of Any Angle

For Students 9th - 10th Standards
Given a reference angle, you can find the trigonometric functions of any angle. The process is demonstrated in this lesson and examples are provided for practicing the concept.
Handout
Math2

Math2.org: Hyperbolic Trigonometric Identities

For Students 9th - 10th
This site lists all the hyperbolic and inverse hyperbolic trigonometric definitions, and expresses the relations of the hyperbolic trigonometric fuctions to trigonometric functions.
Activity
Texas Instruments

Texas Instruments: Computing by Degrees!

For Teachers 9th - 10th Standards
In this activity, students use the calculator to solve trigonometry problems using sine, cosine, and tangent. They also find inverses of trigonometric functions.
Unit Plan
Ministry of Education and Universities of the Region of Murcia (Spain)

Ministerio De Educacion Y Ciencia: Funciones Trigonometricas E Inversas

For Students 9th - 10th Standards
Learn about trigonometric functions and their inverses with this interactive unit.
Activity
Ministry of Education and Universities of the Region of Murcia (Spain)

Ministerio De Educacion Y Ciencia: Familia De Funciones. Tipos Y Operaciones

For Students 9th - 10th Standards
In this unit you will work interactively with family of lines, parabolas, radical functions and trigonometric functions. You will also learn about operations with function, composition of functions and the inverse of a function.
Activity
Texas Instruments

Texas Instruments: Learning Pre Calculus With the Ti 89

For Teachers 9th - 10th
See examples of how to use the TI-89 in Pre-Calculus. Example topics include equations with radicals, trigonometric identities, composition of functions, and inverse functions.
Activity
Texas Instruments

Texas Instruments: Mm Cas 2002 Exam 1 Part 1 : Sample Solutions Q1 & Q7

For Teachers 9th - 10th
Students use the Derive software to solve problems on trigonometric functions.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Srt Finding the Area of an Equilateral Triangle

For Teachers 9th - 10th Standards
This task examines how to calculate the area of an equilateral triangle two ways: using triangle congruence and using trigonometric ratios. Aligns with G-CO.C.10 and G-SRT.C.
Activity
Mr. Martini's Classroom

Mr. Martini's Classroom: Right Angle Trigonometry

For Students 9th - 10th Standards
Explore sine, cosine, and tangents compared to the selected angle.
Unit Plan
Oswego City School District

Regents Exam Prep Center: Unit Circle

For Students 9th - 10th Standards
Two hands-on lab activities for instructors to use when teaching about the coordinate graphs of the sine, cosine, and tangent functions derived from a unit circle. The graphs of the reciprocals of the three functions are investigated....
Activity
Curated OER

Zona Land: Overlapped Graph of the Six Trig Functions

For Students 9th - 10th Standards
An overview of the six trig functions and their graphs. The site is a little difficult to navigate but is good for finding a graph of a trig function.
Activity
Other

Math Mistakes: Common Trigonometry Mistakes

For Students 9th - 10th
Learn from other student's mistakes by reviewing examples of the following Trigonometry topics: values of trigonometric functions, values of inverse trigonometric functions, solving triangles, simplifying trigonometric expressions, and...
Unit Plan
CK-12 Foundation

Ck 12: Trigonometry: Reciprocal Identities

For Students 10th - 12th
[Free Registration/Login may be required to access all resource tools.] Find the reciprocal of trigonometric functions
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Khan Academy

Khan Academy: Sinusoidal Models Word Problems

For Students 9th - 10th
Solve word problems that involve real-world contexts that are modeled by sinusoidal functions. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Activity
Math Medics

S.o.s. Math: Algebra

For Students 9th - 10th Standards
This lesson provides basic instruction on the major concepts in algebra. Content includes a focus on fractions, units of conversion, complex numbers, quadratic equations, factorization and roots of polynomials, solving equations, systems...
Activity
Interactive Mathematics

Interactive Mathematics: Values of Trigonometric Functions

For Students 9th - 10th Standards
How do you determine the value f a trig function? Find the answer here. This tutorial shows how to find trig values from 45-45-90 and 30-60-90 triangles, as well as how to use the calculator to find both trig values and angle measures.
Activity
Math Medics

S.o.s. Math: Trigonometry

For Students 9th - 10th Standards
This lesson is the main SOS Math page for trigonometry. Surf the lesson to find most any trigonometric identity, formula, and many forms of help in the area of trigonometry.
Lesson Plan
Alabama Learning Exchange

Alex: Traveling Around the Unit Circle

For Teachers 9th - 10th
This lesson is intended to review the key ideas associated with trigonometric functions.The design of this lesson provides a collection of reproducible activities to be used in a classroom setting where students have varied backgrounds /...
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That Quiz

That Quiz: Trigonometry

For Students 9th - 10th Standards
You can practice evaluating the six trigonometric functions and their inverse in radians or degrees. Four different levels are provided and it also tracks the number of correct answer.
Activity
Texas Instruments

Texas Instruments: Phases of the Moon

For Teachers 9th - 10th
In this TI InterActive! activity, students study the phases of the moon, plot the fraction of the moon showing each day in a month, and fit the data with an appropriate trigonometric function.