Direct and to the point (the slope at a point that is) describes this one-page proof of the derivative of the sin(x). The definition of a derivative using a limit is the first step in this sequential, algebraic, explanation of how...

Get the trig facts fast, and use the review sheet as a guide in the classroom. The worksheet also includes a document version if any changes are needed to the problems. The information includes a small degree/radian chart, a graph of all...

Your pre-calculus learners will make use of this wonderful cheat sheet that summarizes all things trigonometric. Definitions based on both the unit circle and the right triangle are included, as well as many convenient trigonometric...

If you are looking for a secular approach to teaching about Easter, this may just be the resource for you. Pupils read a paraphrased text depicting the last supper, arrest, and crucifixion of Jesus Christ as told in the Bible,...

One must obey the sine laws. A activity introduces and derives the Law of Sines for non-right triangles. With examples that use the Law of Sines to determine unknown measures in triangles, the activity checks to see if the...

Bone-crusher. Troll-wife. Battle-sweat. Blood-worm. What study of Beowulf would be complete without offering readers of this Old English epic poem an opportunity to craft their own kennings and epithets? Provide individuals with a copy...

What is space made of? It turns out that there are many compounds found in space! The 10th lesson of a science series provides a list of the compounds found in space and asks young scholars to research the characteristics of these...

Japanese theoretical physicist Sin-Itiro Tomonaga resolved key problems with the theory of quantum electrodynamics (QED) developed by Paul Dirac in the late 1920s through the use of a mathematical technique he referred to as...

A complete reference guide to the sine function. It provides definitions, examples, and an interactive activity that enhances further explanation. Includes links to related topics.

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.

A detailed biography on the life of Unitarian Michael Servetus. Discusses his childhood, his rejection of the doctrine of original sin, his death at the hands of the Reform Protestants in Geneva and their pastor, John Calvin, and also...

In this entry for Absolution, the Sacrament of Penance is dicussed. This article was written from a Catholic point of view. Please note that "The Catholic Encyclopedia" is a historic reference source and should be viewed in the context...

The Centers for Disease Control and Prevention site offers a detailed account of the 1993 outbreak in the western US that lead to discovery of a new disease linked to "a previously unknown type of hantavirus." Many related pages with...

A guide to calculating trigonometric functions.

Excellent summary of Augustine's intellectual development and major doctrinal contributions. Describes his journey through various ancient philosophies to Christian religion. Explains Augustine's fight against Pelagianism, his doctrine...

A detailed summary of the indictment and charges against President Slobodan Milosevic related to his conducting a war against Kosovo and other ethnic area sin Serbia in the 1990s. The indictment was released in October 2001. (2004).

Provides trigonometric identities, which include fundamental identities, even-odd identities, addition formulas, double-angle formulas, subtraction formulas, product-sum formulas, and identities for sin squared and cos squared.

Theoretical physicist Julian Schwinger used the mathematical process of renormalization to rid the quantum field theory developed by Paul Dirac of serious incongruities with experimental observations that had nearly prompted the...

In trigonometry today, we use the abbreviations sin, cosine and tan. Girard was the first mathematician to use these abbreviations in his work.

Northeast Parallel Architectures Center of Syracuse University provides a quick overview of the signs of the six trigonometric functions in the four quadrants of the coordinate plane.

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...

Northeast Parallel Architectures Center provides a quick overview of the graphs of the six trigonometric functions, with angles measured in radians.

This Northeast Parallel Architectures Center of Syracuse University site offers a quick overview of the six trigonometric functions from the standpoint of the unit circle.

This encyclopedia article from Wikipedia explores the 1960 Pulitzer Prize winning novel by Harper Lee. The article includes a description, a plot summary, and a look at the movie adaptation and other cultural influences.