The Developmental and Reproductive Toxicology and Environmental Teratology Information Center (DART/ ETIC) …
The Developmental and Reproductive Toxicology and Environmental Teratology Information Center (DART/ ETIC) Database is made available by the National Library of Medicine's Toxicology Data Network. The database contains over 100,000 current and earlier literature citations covering teratology and other aspects of developmental and reproductive toxicology. Users may search the database by subject, title words, chemical name, Chemical Abstracts Service Registry Number, and author. The Web site also includes a useful help page and sample record for familiarizing oneself with the database.
Math Central is maintained by the math and education departments at the …
Math Central is maintained by the math and education departments at the Canadian University of Regina. Possibly the most valuable section of the site is the Resource Room, which has an impressive database that is separated into materials for elementary, middle, and secondary schools. There are several specific categories for each education level, such as math history, algebra, geometry, problem solving, and many more. Users can email suggestions for additional topics. Another interesting section is the monthly problem, and submissions are accepted and posted online. Most of the site can be viewed in English, French, or Spanish.
Brought to you by Elizabeth Stapel and purplemath.com, this collection of learning …
Brought to you by Elizabeth Stapel and purplemath.com, this collection of learning modules contains over 100 mathematics modules designed to teach beginning, intermediate, and advanced algebra concepts. Some algebra topics include graphic linear equations; adding, subtracting, multiplying, and dividing polynomials; and solving linear and literal equations. Intermediate algebra topics include domain and range, even and odd functions, factor theorem, and solving systems of non-linear equations. Finally, advanced algebra topics include complex fractions, complex numbers, matrix addition and subtraction, and partial fraction decomposition. This is a great reference and teaching resource for teachers and students of introductory algebra courses. This is an especially good resource for teachers looking for in-class illustrations of fundamental algebra concepts.
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