The tutorial examines trigonometric derivatives. Formulas, graphs, and an example are included.

This list of trigonometric identities includes the factoring formulas near the bottom. A great tool for reference.

The University of Saskatchewan provides an explanation of trigonometric identities, including the reciprocal identities, the addition and subtraction formulas with sine and cosine, and the double angle formulas. There are links to...

This site explains the functions such as trigonometric, exponential, and logarithmic

This tutorial discusses relationships among all the trig identities. Examples are given on how to apply them to simplify trig expressions and prove identities.

This MathWorld tutorial provides detailed overviews of the concepts and theorems associated with geometry. Most of the Math World sites are extensive and some require higher math knowledge to understand, links to terms and topics are...

Given eight trigonometric functions containing absolute value elements, choose whether each is differentiable or non-differentiable. At the conclusion of the exercises, the site returns a score which helps judge understanding of the topic.

An interactive tool to discover how the trig functions came to be. Applets are used in this interactive learning tool. Examples exercises are also given.

This lesson gives a tutorial on the measure of an angle. Includes sample problems and solutions.

An online cosine game which offers practice in mental math and times practice. When you submit the wrong answer, it provides the correct one. In Spanish, with links to English and Italian versions.

A selection of Grade 11 sketches for use with The Geometer's Sketchpad can be downloaded here. The files are in GSP format.

In Spanish. Interactive activities online on various geometric and trigonometric concepts such as area, perimeter, secants, tangents, etc. A terrific resource for students. Site is organized acoording to shape. (triangle, quadrilaterals,...

Definition and description of vectors. Diagram included. This site only covers the most basic aspects of vectors.

Begin by watching this captivating video showing how the concepts of similarity and congruence are found in road signs. Following the video [1:27], an interactive applet allows students to resize, flip, move and rotate triangles to...

Students learn about and use a right triangle to determine the width of a "pretend" river. Working in teams, they estimate of the width of the river, measure it and compare their results with classmates.

Accuracy of measurement in navigation depends very much on the situation. If a sailor's target is an island 200 km wide, sailing off center by 10 or 20 km is not a major problem. But, if the island were only 1 km wide, it would be missed...

Working in small groups, students complete and run functioning Python codes.This requires students to understand the logic employed, and then they must make modifications to the code in order to find the slopes of tangents to a variety...

Twenty problems present a variety of practice working with fundamental trigonometric identities. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click the "View...

Great lesson plans covering a wide-range of math-related subjects.

This resource contains relevant information regarding to complex roots that includes formulas and graphs.

This tutorial examines the law of sines and the law of cosines. Includes class notes, examples, and a variety of practice problems with solutions. The teacher resource consists of a lab that utilizes the law of sines and the law of cosines.

A collection of lessons, practice activities, and a teacher resource that will aid your exploration and understanding of special right triangles.

Students can use this site to practice questions dealing with trigonometric graphs. Students are challenged with multiple real-world problems and after solving those problems they can check their solution online.

An online sine game which offers practice in mental math and times practice. When you submit the wrong answer, it provides the correct one. In Spanish, with links to English and Italian versions.