This resource from Khan Academy provides advanced-level practice questions over the structures, powers, and functions of Congress. These practice questions are intended for students taking high school or college level American Government...

The Advanced Data Grapher can be used to analyze data with box plots, bubble graphs, scatterplots, histograms, and stem-and-leaf plots.

This article from the Mayo Clinic stresses the value of the advance directive in that it allows the individual to maintain power over his/her own situation. Includes information on what are advance directives, choosing a decision maker,...

This lesson will describe the trade-offs involved when technological developments impact the way we use energy, natural resources, or synthetic materials. It is 3 of 4 in the series titled "Energy Advances."

This lesson will describe the trade-offs involved when technological developments impact the way we use energy, natural resources, or synthetic materials. It is 4 of 4 in the series titled "Energy Advances."

This lesson will describe the trade-offs involved when technological developments impact the way we use energy, natural resources, or synthetic materials. It is 1 of 4 in the series titled "Energy Advances."

Why have we had ice ages in the past? This resource explores the reasons why the earth's climate has repeatedly changed to create ice ages. A quiz is available to check your understanding.

This resource from Khan Academy provides questions about the Senate and the House of Representatives. This lesson is intended for students taking a high school or college level American Government and Civics courses, including the AP...

This resource is devoted to professionals on the cutting edge of the computing world and contains membership information, news links and professional development opportunities.

Hyperlinked diagram provides an in-depth explanation of each phase of the Earth's water cycle.

Lesson plan to help students understand independent and dependent variables through a fire probability simulation.

Author provides simple but helpful guidance to start effective workplace communication. Advancing Women: Learning Effective Workplace Communications

Visualize the main driving force behind molecular biology, where DNA makes RNA, and RNA makes protein. [1:53]

An animated tutorial showing how each chromosome consists of one continuous thread-like molecule of DNA coiled tightly around proteins. [1:42]

Practice solving exponential equations using exponent properties.

Determine the domain of piecewise functions whose assignment rules have different expression types.

Possessive plurals have a complicated relationship with apostrophes, but this exercise is here to help you understand it!

Run a simulation of how a fire spreads through a stand of trees, learning about probability and chaos. Track the results of multiple burns and use the data to draw conclusions.

Given two figures on the coordinate plane, draw the line of reflection that takes one figure to another.

Determine the domain of functions whose expressions are a combination of different types of assignment rules.

This project will teach you the basics of analytical chemistry, which is a must for students who want to go into chemistry or materials science. The molecules in objects we see all around us are constantly attracting each other....

Chromatography is a method used to separate mixtures of compounds and to identify each compound in the mixture. You may have separated the different inks in a black marker by using a strip of paper and water. There are many different...

The transistor and the integrated circuit were two inventions that fueled the technology explosion. This lecture presents a brief discussion of these two inventions.

CollegeBoard offers course information, exam information, teaching materials, articles, and suggested links for both teachers and students of AP Physics 1.