Baylor College of Medicine offers this biology teaching resource with classroom lessons, slide sets, and hot topics.

Nonprofit corporation specializing in the development of curricular materials and other resources that help in students in their understanding of science and technology.

Resource site for biology and science teachers. Presents lesson plans, classroom activities, worksheets, and links to other education sites and tools.

Provides a teachers' guide, resources for student instruction, and downloadable lessons.

Utilizes all types of biology topics for teaching, explaining, introducing and understanding biology.