Several case studies give students the opportunity to see the application of these concepts in real research studies, with explanations of research designs and a look at the statistics. Find out at this Web site dedicated to demonstrating all types of optical illusions and explaining what exactly is happening. You can start out with an introduction to perception or jump right to a variety of illusions with full explanations. Designed for students in pre-algebra, the site also offers facilitator notes for the teacher and links to Web and print resources for students to use in solving the problem. Longer articles about sky phenomena are linked from current happenings.
Teachers have the opportunity for teacher training through online courses.
Other features include information for beginning Internet users on connectivity and using electronic tools. Several lesson plans are provided with extensive teacher information for incorporating the Web into instruction. Many of these applets are also presented in the context of a longer tutorial about a chemistry topic. While many topics are always available, the site highlights a particular concept or scientist each month. Send us your suggestions for Digital Dozen sites.