Both the federal government and many state governments impose "sin taxes" that tax items and activities which are considered socially harmful. This article explains these taxes and shows how much states and the federal government raise...

"Portrait of Sin Sukju" reflected both the honor that Sin Sukju brought to his lineage as a meritorious official in Korea as well as Confucian beliefs about the afterlife. View the portrait and read about the person it commemorated.

The interactive tutorial explores the graph of the derivative of sin (x).

This applet allows the user to create the graphs of sin, cos, and tan by moving a scroll bar. The user can watch the unit circle and the graph simultaneously to see how the two are related. The user may also choose to see the angle...

Lists five "deadly sins" to purge from your writing. If you're not sure how to correct these errors, just click on the list item to link to more information.

In this activity, students explore a right angled triangle and its trigonometric concepts. They investigate the trigonometric ratios for the angles of the triangle.

This media gallery explores the inspiration for and reception of "The Crucible" during the Hollywood Blacklist with videos from the American Masters film "None Without Sin." The videos and support materials are best used during or after...

This video and support materials detail the Hollywood blacklist and House Un-American Activities Committee, chronicling the fear of Communism and resulting blacklist based on political ideology. The video is from the American Masters...

These videos and support materials explore the intense division experienced by those who testified before and blacklisted by HUAC during the Cold War, focusing on the testimony of Elia Kazan. The videos are from American Masters None...

Burning incense sticks at Wong Tai Sin Temple (Hong Kong)

Wong Tai Sin Temple entrance gate (Hong Kong)

Wong Tai Sin Temple (Hong Kong)

An image of "Sin", created by Franz Von Stuck in 1893 (Oil on canvas, 88 x 52 cm).

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.

An image of "The Original Sin", created by Jan the Elder Brueghel in 1616 (Oil on wood, 52 x 83,5 cm).

An image of "Sin, Death and the Devil", created by James Gillray in 1792 (Etching, 319 x 399 mm).

An image of "Creation of Eve and Original Sin", created by Paolo Uccello from 1432-36 (Fresco, 244 x 478 cm).

An image of "Christ Triumphant over Sin and Death", created by Peter Paul Rubens from 1615-22 (Oil on canvas, 182 x 230 cm).

An image of "The Seven Deadly Sins", created by Hieronymus Bosch, c. 1480 (Oil on panel, 120 x 150 cm).

An image of "Original Sin", created by Michiel Van Coxciez (Oil on panel, 237 x 87,5 cm).

Proves that the cos and sin functions form an orthogonal set, as it applies to Fourier series.

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 'Goblin Market', Rossetti employs imagery to explore Victorian debates around sin and temptation. Students will explore these techniques and apply them to their own work.

In Spanish. In these activities you can develop the concept of trajectory. Try to trace the figures without lifting your pencil.