Radiation is natural and all around us. It can be man-made too. But it's nothing new. It is, quite simply, part of our lives. RadTown USA is a virtual community showing a wide variety of radiation sources and uses as you may encounter them in everyday life. Explore this interactive, virtual community of houses, schools, laser light shows, construction equipment, flying planes, and moving trains. Each place in RadTown helps you learn about radiation sources or radiation- treated items you might find there.

The scope of this video lesson consists in studying the sets of Rational and Irrational numbers. It is best suited for an advanced math course: Algebra 2 or higher.

FreeReading is an open source instructional program that helps educators teach early literacy. Because it is open source, it represents the collective wisdom of a wide community of teachers and researchers. FreeReading contains Reading Connect Text Activities, a page of sequential and supplemental activities that helps teachers teach students to decode their first sentences in print.

This task is intended to help model a concrete situation with geometry. Placing the seven pennies in a circular pattern is a concrete and fun experiment which leads to a genuine mathematical question: does the physical model with pennies give insight into what happens with seven circles in the plane?

This course examines the nature of attitudes, beliefs, and values, and the influences which indiviudals' attitudes have upon their behavior. Various theories of attitude organization and attitude change are discussed, and the development of social attitudes is explored by examining the differential impact of the family, the educational system, the mass media, and the general social environment. The changing content of public opinion over time and its relationship to the political system are also discussed.

The Saint Paul Chamber Orchestra, founded in 1959, is widely regarded as one of the finest chamber orchestras in the world. In this free Listening Library, enjoy performances of more than 250 compositions written from 1691 to 2011.

A crudely drawn but complex satire mocking Zachary Taylor's military background and lack of political experience. Student Zachary Taylor, wearing a paper cap made out of the journal "The True Whig" is seated on a low stool at the feet of his more politically seasoned running mate Millard Fillmore. Taylor reads from a book "Congressional Debates 1848. Slavery . . .", and spells out "W-I-L-M-O-T: Wilmot, P-R-O-V-I-S-O: Proviso. What do I know about such political stuff. Ah! Wait until I get loose, Then you will see what fighting is!" A torn sheet marked "National Bank" lies at his feet. Fillmore, who reads from "The Glorious Whig Principles [by] Henry Clay," admonishes Taylor, "This will never do, you must forsake this course,--for our party is a peaceful and rightous sect--free from wickedness." Behind Fillmore are an open book cabinet, the Constitution, and a globe. This are in obvious contrast to the maps of "The Late War" and a broadsheet "The Life of Johnny Tyler" on the wall behind Taylor. At Taylor's knee sits a bloodhound with a collar marked "Florida," a reminder of Taylor's controversial use of bloodhounds in the Second Seminole War. To the right two black youths polish Taylor's weapons. The first, kneeling and wiping a pistol, says, "By golly! Massa Taylor like fighting better then him dinner." The other, cleaning a sword, claims, "Dis am de knife wot massa use to cut up de Mexijins wid." In the center of the floor are a group of toy soldiers and a cannon.|Probably drawn by E.F. Durang.|Published by Peter E. Abel & Durang, Philada.|Sold by Turner & Fisher, N. York & Philada.|Title appears as it is written on the item.|Weitenkampf, p. 95.|Forms part of: American cartoon print filing series (Library of Congress)|Published in: American political prints, 1766-1876 / Bernard F. Reilly. Boston : G.K. Hall, 1991, entry 1848-44.

uses properties listed in the National Park Service's National Register of Historic Places to enliven history, social studies, geography, civics, and other subjects. TwHP has created products and activities that help teachers bring historic places into the classroom. Lesson plans turn students into historians as they study primary sources, historical and contemporary photographs and maps, and other documents, and then search for the history around them in their own communities.

A lesson plan that compares a traditional story with a non-traditional one while looking at key details in the stories.

This video is meant to be a fun, hands-on session that gets students to think hard about how machines work. It teaches them the connection between the geometry that they study and the kinematics that engineers use -- explaining that kinematics is simply geometry in motion. In this lesson, geometry will be used in a way that students are not used to. Materials necessary for the hands-on activities include two options: pegboard, nails/screws and a small saw; or colored construction paper, thumbtacks and scissors. Some in-class activities for the breaks between the video segments include: exploring the role of geometry in a slider-crank mechanism; determining at which point to locate a joint or bearing in a mechanism; recognizing useful mechanisms in the students' communities that employ the same guided motion they have been studying.

This lesson plan has students use web 2.0 graphic organizers to plan and produce expository writing, specifically to plan and produce a how-to video.

The principal purpose of the task is to explore a real-world application problem with algebra, working with units and maintaining reasonable levels of accuracy throughout.

This lesson guides students to find answers in non-fiction texts about wolves by using of the KWHL graphic organizer and a reading strategy called RUNNERS. Students practice using these strategies while gathering information from different sources.

FreeReading is an open source instructional program that helps educators teach early literacy. Because it is open source, it represents the collective wisdom of a wide community of teachers and researchers. FreeReading contains Writing Activities, a page of activities to address important writing skills and strategies.

This interactive site allows participants to learn about skeletal anatomy by viewing the bones of a human, chimpanzee, and baboon. The Comparative Anatomy section enables users to make direct comparisons of bones. The material is appropriate for science teacher education as it illustrates how careful observation leads one to wonder about the dizzying beauty of a planet that works by bringing us one different creature after another.