How to Use the OpenStax Community Hub

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Tips and guidelines to help you create resources that align with OpenStax titles

Material Type: Lesson

Author: Sonya Bennett-Brandt

Formation of a Sinusoid from the Unit Circles

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Based on knowledge of the unit Circles, students see how sinusoids (Sine and coSine waves) get their shapes.

Material Type: Simulation

Distance from a point to a line using trigonometry

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An interactive applet and associated web page that demonstrate how to find the perpendicular distance between a point and a line using trigonometry, given the coordinates of the point and the slope/intercept of the line. The applet has a line with sliders that adjust its slope and intercept, and a draggable point. As the line is altered or the point dragged, the distance is recalculated. The grid and coordinates can be turned on and off. The distance calculation can be turned off to permit class exercises and then turned back on the verify the answers. The applet can be printed as it appears on the screen to make handouts. The web page has a full description of the concept of the concepts, a worked example and has links to other pages relating to coordinate geometry. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.

Material Type: Reading, Simulation

Author: John Page

College Trigonometry

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This book was designed as an introductory trigonometry textbook for college students with the explicit goal of reducing textbook costs.

Material Type: Textbook

Authors: Carl Stitz, Jeff Zeager

Trigonometry

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Book description: This is a text on elementary trigonometry, designed for students who have completed courses in high-school algebra and geometry. Though designed for college students, it could also be used in high schools. The traditional topics are covered, but a more geometrical approach is taken than usual. Also, some numerical methods (e.g. the secant method for solving trigonometric equations) are discussed. A brief tutorial on using Gnuplot to graph trigonometric functions is included. There are 495 exercises in the book, with answers and hints to selected exercises.

Material Type: Textbook

Author: Michael Corral

OpenStax Algebra and Trigonometry Chapter 7 Lecture Notes

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PowerPoint Slides to accompany Chapter 7 of OpenStax Algebra and Trigonometry textbook. Prepared by River Parishes Community College (Jared Eusea, Assistant Professor of Mathematics, and Ginny Bradley, Instructor of Mathematics) for OpenStax Algebra and Trigonometry textbook under a Creative Commons Attribution-ShareAlike 4.0 International License. Date provided: July 2019.