Can you catch the same cold twice? Elementary and middle schoolers learn about what happens when a virus attacks their bodies, and how the immune system never forgets a virus, with an entertaining comic book. The packet includes...

Here's an amazing writing guide that deserves a place in your curriculum library. The 136-page packet provides focus lessons on the writing process, expository, persuasive, and timed writing, the Cornell system of note taking, and...

Membranophones? Aerophones? How about strings? Percussion? You need not be a music instructor to benefit from a packet of 24 worksheets that introduce aspiring musicians to the various instrument families.

You'll never miss a beat with a resource packet filled with puzzles, quizzes, and activity worksheets that focus on time signatures. Don't quaver or rest until you score this packet.

Classroom and studio music instructors will find this packet of 10 transparencies of major value. Images of treble and bass clefs, notes and rests, note values, time signatures, and music language are included. Nothing minor about this...

Whether you are learning or teaching American Sign Language, a thorough resource on the ways to depict different hand symbols is sure to enhance your journey into proficiency. With sections on different hand symbol groups, including...

This site, provided by Mark Nottingham, defines the term "Cache," describes the different types of caches, and how caches work. Tips for using caches correctly in a site are also provided.

A concise biography of Darwin, including his travels and his published works. Includes links to online copies of selected publications, along with information on related subjects.

This site from the St. Cloud State University provides information on online sources. This article explains how to assess the value of online sources based on authorship, publisher, date of publication, depth of material, and...

From the pages of "Mammals of North America," a field guide published by Princeton University Press, this website offers general descriptions of striped, blunt-nosed dolphins and porpoises. Detailed pictures and maps of habitat range are...

From the pages of "Mammals of North America," a field guide published by Princeton University Press, this website offers general descriptions of several procyonids, including ringtails, northern raccoons, and white-nosed coati. Detailed...

From the pages of "Mammals of North America," a field guide published by Princeton University Press, this website offers general descriptions of both spotted and hog-nosed skunks. Detailed pictures and maps of habitat range are also...

This resource presents a biography of Mexican revolutionary Emiliano Zapata. The biography is taken from the Encyclopaedia Britannica, and published as part of an online project entitled "Zapatista Rebels in Mexico and the Electronic...

Part of a biography web page including information on James, John, and Daniel Bernoulli. The site includes information originally published in "A Short Account of the History of Mathematics" by W. W. Rouse Ball (4th Edition, 1908).