This is a beginners guide to keeping estuarine, or brackish water, marine life in aquariums. Topics include: basic aquarium supplies and set-up for novices; how-to's of operation and maintenance; monitoring water...

Aimed at high school students, The Evolution of Technology module combines investigations of these aspects of technology with student projects that illustrate them in detail. Students work in teams to complete a research...

The site, created by Dr. Hossein Arsham of the University of Baltimore, provides an introduction to understand the basics of and working with Excel. Redoing the illustrated numerical examples in this site will help in...

This online, interactive lesson on expected value provides examples, exercises, and applets in which students will explore relationships between the expected value of real-valued random variables and the center of the...

This site, created by Michelle Lacey of Yale University, gives an explanation, a definition of and an example using experimental design. Topics include: experimentation, control, randomization, randomized design, block...