This lesson plan deals with conditional probability and the probability of simultaneous events. Problems included in this lesson tend to have solutions that are counterintuitive. This presents an opportunity to investigate more deeply the mathematical and probability concepts involved. Many resources are available to teachers and students at this website.

This Stanford University encyclopedia entry discusses Confucius (551-479 BCE), who, according to Chinese tradition, was a thinker, political figure, educator, and founder of the Ru School of Chinese thought.

Includes two maps of the state as well as several topographic maps of cities in Connecticut and one historic map of New Haven in 1920.

Read about how the Denver Zoo helps to protect animals in Botswana in Africa. Includes audio narration in English, Chinese, Spanish, Setswana, and Turkish, with text in English.

See how this principle translates in to fluids and the Bernoulli equation as well as into electric circuits and the voltage law and finally into heat and thermodynamics through the first law of thermodynamics.

This StudyCard stack is a teaching activity that demonstrates that the constant rate of change idea is present in many situations outside the mathematics classroom.

This resource features text of the Constitution of the Confederate States of America.

Read the text of Article II of the Constitution, the four sections of which lay out the powers and duties of the executive branch of the federal government.

The complete text of the U.S. Constitution as adopted by the U.S. Congress on September 17, 1787, with information about changes made.

In this activity, students will investigate the construction of circles that pass through a given number of points. They will also investigate the number of points needed to generate a unique circle in a plane.

Given a circle, students will construct a diameter of the circle. They will use the following theorem: In the same circle, if one chord is a perpendicular bisector of another chord, then the first chord is a diameter.

An online version of "flashcards" for students to use in learning the contracted forms of phrases. Students can see the word or contraction, flip the page to the other side, or discard the flashcard altogether.

What is anger and why does it affect people differently? Here's a brochure from the American Psychological Association to answer some basic questions on anger.

Site provides exercises for graphing on the coordinate plane including distance formula, midpoint formula, graphs of equations, and graphing using a calculator.

Students will learn the meaning of the correlation coefficient, find the regression equation and use it to make predictions.

A great site to find general information on stars and their place in the universe. Click on the topics on the right margin for additional information about stars.

Students use the Cabri Geometry II Plus software to solve a geometry problem. They move the vertex point that is common to two right triangles along the base to find the smallest possible sum of the length of the hypotenuse.