Porterfield, Jason

Provides an overview of Niklas Zennstr?m, co-founder of Skype, an internet communicating website.

Explores obtaining a career in undercover gang investigation.

Discusses equipment, licensing, clothing, gear, safety precautions, and specialized techniques and strategies necessary for bowfishing.

Explains the economic concept of recession and how it affects the average person, and suggests ways to plan an economic future.

Graphic organizers illustrate the competition for resources necessary for survival within a species and among different species.

The human impact on the envronment can be shown using graphic orgnizers, tools used to present information in a way that is easy to understand.

Explains what a depression is, discusses how one starts and grows, explores their effects, and questions whether one can happen again.

Traces the process and influences behind the writing of Robert Louis Stevenson's novel, Treasure Island, which was published in 1883 when the horrors of piracy were fresh in the public mind.

Presents a guide to careers in the United States Army, covering what to expect from the recruitment process and basic training, as well as the different career paths available.