Moving materials across the cell membrane sometimes requires energy, called active transport. This tutorial covers both primary and secondary active transport with good clear animations.

This slideshow lesson focuses on how to document interview sources using APA style. It describes two types of interviews: personal and published. It explains how to document a personal interview in text with an example; it also explains...

From the International Institute of Social History this is "Take steel as the key link, for a leap forward in all fields" a Chinese political propaganda poster by the Tianjin People's Fine Arts Publishing House collective work, 1958.

From the International Institute of Social History this is "Forging ahead courageously while following the great leader Chairman Mao" a Chinese political propaganda poster by the artists of the Shanghai People's Fine Arts Publishing...

This infographic is provided to help students with writing their first novel. Tips for designing a novel, writing the book, and getting the book published.

Looking for ways to easily integrate technology into your classroom? This site lays out a template of 10 classroom sessions that effectively models use of laptops in the classroom. Units include a HS English research paper, health class...

Provides continent, country, and ocean floor maps from all over the world. Click on a continent's name to access the detailed maps which also include statistical facts on each available country.

Listen and learn as you discover definitions for acid, base, and acid-base reaction. View example formulas of Arrhenius and Bronsted-Lowry acid and bases.

Integrated Publishing offers this excellent page specifically on common logarithms.

Integrated Publishing offers this excellent page specifically on common logarithms.

Integrated Publishing offers this excellent page specifically on common logarithms.

Although this Winfield Publishing site is about Winfield, KS, it gives good, general information and pictures about paving roads with bricks "during the first two decades of the 1900s."

This site from Integrated Publishing provides three different examples of theories of magnetism.

Visit Vallon-Pont d'Arc to learn about the past through cave paintings. See which animals lived in the world back then and which ones still live today.

This version of Defoe's story can be viewed the way it was published about 1900, complete with illustrations. Could make an interesting comparison to the complete novel.

This diagram from Rainbird Publishing describes the specialized physical characteristics that allow woodpeckers to create some of the most secure nests in the bird world.

This workshop launches will launch students into the writing process. Read advice from Pulitzer Prize winning journalist Nigel Jaquiss, and read work from other students. The Sandwich Critique is an excellent way to peer review. Finally,...

A comprehensive site that includes information about Townsend and the Townsend Plan, links to the different sections of the text of the Social Security Plan, links to issues of the newsletter that was published by Townsend, editorial...

Published images from the mid-1800s to the early part of the 1900s depicting Native Americans from tribes all over the United States.

View a gallery of 27 photos, many of which were never published in LIFE magazine at the time, from a series of protests and sit-ins in Petersburg, Virginia, in May 1960. These photos also capture some of the unusual training methods that...

See color photographs from Life Magazine of Allied troops traveling through Italy towards Rome in the Italian campaign near the end of World War II. Many of these photographs were not published in the magazine at the time. Each photo has...

Ethnographic site explores famous Mohenjo-daro through 103 indexed slides, some never published before, and an illustrated essay.

A narrated journey through the last 800,000 years of the Earth's climate, accompanied by images and graphs. A text-only version is also available. (Published 3 Dec. 2009)

Slide show focusing on the elements of stoichiometry relating to limiting reactants. Go through the first several slides to review or introduce the topic.