Sine and Cosine Teaching Resources :: 457

ClassFlow

Class Flow: Advanced Trigonometry

For Teachers 9th - 10th

[Free Registration/Login Required] Students describe, analyze, and reason angles being as small or as large as they can imagine. Using trigonometrical ratios, this is a fun exercise in understanding how to examine the perfect graph.

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Windstream

Ojk's Precalculus Study Page: More Difficult Trig Equations

For Students 9th - 10th Standards

An introduction to solving trigonometric equations by using the reciprocal, negative, Pythagorean, and cofunction identities. Includes several examples and exercises with solutions at the bottom of the page.

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ClassFlow

Class Flow: Basic Right Triangle Trigonometry

For Teachers 9th - 10th Standards

[Free Registration/Login Required] This flipchart shows the basic relationships between trig functions and the sides and angles of a right triangle.

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Math Words

Math Words: Cofunction Identities

For Students 9th - 10th Standards

This MathWords.com site, which is a glossary of math terms, shows the relationship in radians and degrees between sin and cos, tan and cot, and sec and csc.

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ClassFlow

Class Flow: Trigraphs

For Teachers 9th - 10th Standards

[Free Registration/Login Required] Students use the interactive features of Activstudio to graph various functions.

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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.

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Khan Academy

Khan Academy: Trigonometric Ratios in Right Triangles

For Students 9th - 10th Standards

Given the side lengths of a right triangle, find the sine, cosine, or tangent of one of the acute angles. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

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Texas Instruments

Texas Instruments: Investigating the Derivatives of Some Common Functions

For Teachers 9th - 10th

In this activity, students will investigate the derivatives of sine, cosine, natural log, and natural exponential functions by examining the symmetric difference quotient at many points. They develop the idea of the derivative as a...

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Northeast Parallel Architectures Center, Syracuse University

Npac Reu Program: Often Used Values

For Students 9th - 10th

Northeast Parallel Architectures Center of Syracuse University provides a quick reference chart of the exact values of the sine, cosine, and tangent functions for the most common angle measrements in the first quadrant. Includes both...

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Mangahigh

Mangahigh: Pyramid Panic: Basic Shapes to Advanced Geometry

For Students 9th - 10th Standards

Guide a mummy safely through the burial chambers of a pyramid as you solve length and area problems in basic to advanced geometry. There are four game zones that deal with circles and triangles, quadrilaterals, the Pythagorean Theorem,...

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Free Math Help

Free Math Help: Trigonometry Addition Formulas

For Students 9th - 10th Standards

Students learn about the trigonometric addition formulas. Sine, cosine, and tangent formulas are included.

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Curated OER

Math2.org: Trigonometric Graphs

For Students 9th - 10th

Sketches of the graphs of the 12 "parent," trigonometry functions are given: sine, cosine, tangent, secant, cosecant, cotangent, arcsine, arccosine, arctangent, arcsecant, arccosecant, and arccotangent.

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