Excerpt from the Preface to Alice Henry's book, The Trade Union Woman (1915) in which Henry argues for regulation of wages and working conditions for women. Link to the entire book.
Videos from the America on the Move exhibition provide an overview of America's transportation infrastructure history, the road and rail networks we depend on.
Tutorial on newspapers. Looks at types of newspapers, the language of newspapers, news sources, what has news value, marketing, distribution, circulation, readership, online newspapers, editorial stance, ownership of newspapers, and regulation of them. Includes a glossary and a multiple-choice test.
Biology 2e is designed to cover the scope and sequence requirements of a typical two-semester biology course for science majors. The text provides comprehensive coverage of foundational research and core biology concepts through an evolutionary lens. Biology includes rich features that engage students in scientific inquiry, highlight careers in the biological sciences, and offer everyday applications. The book also includes various types of practice and homework questions that help students understand—and apply—key concepts. The 2nd edition has been revised to incorporate clearer, more current, and more dynamic explanations, while maintaining the same organization as the first edition. Art and illustrations have been substantially improved, and the textbook features additional assessments and related resources.
By the end of this section, you will be able to do the following:
Describe how feedback inhibition would affect the production of an intermediate or product in a pathway
Identify the mechanism that controls the rate of the transport of electrons through the electron transport chain
Review how the human body regulates gene expression.
A free CK-12 account is required to view all materials.
This site explains what construction and building inspector's jobs entail. Learn about such topics as working conditions, employment, pay scale, training, job outlook, and related jobs.
Two French scientists describe the research they did to figure out how bacteria turn certain genes on and off. The topic is a little involved, but the animations should help you understand the process.
This activity presents students with the challenge of saving lives through public policy. A cost-benefit analysis of current programs and potential policies will be used.
Explore the constitutional conflict regarding the question of whether the first amendment limits the government's ability to regulate fighting words or hateful speech? This source contains background information and links to historical court cases that revolved around this issue. Also included are critical thinking/discussion questions.
Correspondent Martin Smith travels to Haiti to bear witness to this humanitarian crisis and the ill-coordinated relief efforts on the ground.
This lesson will explain the process of homeostasis and how it allows organisms to maintain a stable internal environment. It is 3 of 10 in the series titled "Homeostasis."
Learn the pros and cons of genetically modified (GM) crops, and cast your vote on whether they should be grown. From the FRONTLINE/NOVA: Harvest of Fear Web site.
This video segment adapted from Rx for Survival examines malaria in sub-Saharan Africa, a disease that kills more than one million children there each year. [4:31]
This site provides information on carbohydrate metabolism regulation through a quiz set-up. Answer each question, and the correct answers will be presented, complete with a full tutorial.
Students learn about homeostasis and create models by constructing simple feedback systems using Arduino boards, temperature sensors, LEDs and Arduino code. Starting with pre-written code, students instruct LEDs to activate in response to the sensor detecting a certain temperature range. They determine appropriate temperature ranges and alter the code accordingly. When the temperature range is exceeded, a fan is engaged in order to achieve a cooling effect. In this way, the principle of homeostasis is demonstrated. To conclude, students write summary paragraphs relating their models to biological homeostasis.
In reading and discussing Lyddie, by Katherine Paterson, students examine basic economic concepts and explore the growth of labor unions and the role of government in a market economy.
