Students construct rockets from balloons propelled along a guide string. They use this model to learn about Newton's three laws of motion, examining the effect of different forces on the motion of the rocket.

Active Calculus is different from most existing calculus texts in at least the following ways: the text is free for download by students and instructors in .pdf format; in the electronic format, graphics are in full color and there are live html links to java applets; the text is open source, and interested instructors can gain access to the original source files upon request; the style of the text requires students to be active learners — there are very few worked examples in the text, with there instead being 3-4 activities per section that engage students in connecting ideas, solving problems, and developing understanding of key calculus concepts; each section begins with motivating questions, a brief introduction, and a preview activity, all of which are designed to be read and completed prior to class; the exercises are few in number and challenging in nature.

Active Calculus Multivariable is the continuation of Active Calculus to multivariable functions. The Active Calculus texts are different from most existing calculus texts in at least the following ways: the texts are free for download by students and instructors in .pdf format; in the electronic format, graphics are in full color and there are live html links to java applets; the texts are open source, and interested instructors can gain access to the original source files upon request; the style of the texts requires students to be active learners — there are very few worked examples in the texts, with there instead being 3-4 activities per section that engage students in connecting ideas, solving problems, and developing understanding of key calculus concepts; each section begins with motivating questions, a brief introduction, and a preview activity, all of which are designed to be read and completed prior to class; the exercises are few in number and challenging in nature.

In this activity, students watch a short clip from the ASHP documentary 1877: The Grand Army of Starvationto learn about the impact of railroad expansion on Americans and the nation as a whole. After watching the clip, students complete the “Technological Turning Points and their Impact” worksheet in order to examine the positive and negative effects of the railroad.

PBS American Experience’s Abraham and Mary Lincoln: A House Dividedis a 6 episode mini-series available as a 3 DVD set. The following activity focuses on the causes and consequences of Lincoln’s Emancipation Proclamation through an active viewing of Episode 4: The Dearest of All Things(Disc 2). There is a companion website to the series, The Time of the Lincolns, that contains a Teacher’s Guide, primary sources, and episode transcripts.

In this activity, students watch short clips of the PBS/A Bill Moyers Special production ofBecoming American: The Chinese Experience(2003). The documentary clips and accompanying materials cover the arrival of Chinese in California, their work on the transcontinental railroad, the passage of the 1882 Chinese Exclusion Act, and the Angel Island immigration facility. At the end of the activity, students complete a short writing task on whether not to immigrate to the United States from the perspective of a young Chinese man.

In this activity, students watch short clips of the ASHP documentary Daughters of Free Mento learn about the experiences of Lowell mill girls in the 1830s. Students follow the life of Lucy, a young girl working in Lowell in 1836. After each clip, students reflect on what they have just learned and predict what Lucy will do next.

In this activity students analyze the reasons why the Montgomery Bus Boycott lasted so long and was successful. Students watch a short clip from the PBS documentary Eyes on the Prizeabout the Montgomery Bus Boycott. Then students analyze primary sources to determine who participated in the boycott, who organized it, and what challenges boycott supporters faced. The teacher will need access to the filmEyes on the Prize, which is widely available in school and public libraries.

In this activity, students watch the documentary Heaven Will Protect the Working Girlin sections, with documents and exercises designed to support and reinforce the film's key concepts: workers challenging the effects of industrial capitalism, the impact on immigrant families of young women earning money in the garment industry, and the methods used by women to improve working conditions in factories during the Progressive Era.

This activity is designed to help students understand key ideas from the documentary film Savage Acts: Wars, Fairs, and Empire 1898-1904. The film is divided into short segments with suggested viewing strategies and questions to keep students focused.

In this activity, students watch film clips from the documentary The Life and Times of Rosie the Riveter, decode a propaganda poster, and analyze statistics about working women during World War II. Parts of this activity can be completed without the film.

In this activity, students watch the ASHP documentary Up South: African-American Migration in the Era of the Great Warwith documents and exercises designed to support and reinforce the documentary's key concepts of Jim Crow, lynching, sharecropping, migration, and life in northern cities. At the end of the activity, students complete a short writing task on how life changed and how it stayed the same for migrants, and how they tried to improve their lives in the North.

Students compare and contrast passive and active transport by playing a game to model this phenomenon. Movement through cell membranes is also modeled, as well as the structure and movement typical of the fluid mosaic model of the cell membrane. Concentration gradient, sizes, shapes and polarity of molecules determine the method of movement through cell membranes. This activity is associated with the Test your Mettle phase of the legacy cycle.

Actividades de práctica con aprendices del español is an online corpus of videos of second language and heritage language learners of Spanish during oral interviews and provides supplemental activities to help viewers investigate learners’ language and proficiency levels.

The United States has a long history of activists seeking social, political, economic, and other changes to America—along with a history of other activists trying to prevent such changes. American activism covered a wide range of causes and utilized many different forms of activism. American sociopolitical activism became especially prominent during the period of societal upheaval which began during the 1950s. The African American civil rights movement led the way, soon followed by a substantial anti-war movement opposing American involvement in the Vietnam War, and later by vigorous activism involving women’s issues, gay rights, and other causes. The United States remains a land of nearly constant change, and activists play a significant role in the ongoing evolution of American democracy. It seems likely that Americans will remain enthusiastic activists in the future. This exhibition is part of the Digital Library of Georgia.

This activity first asks the students to study the patterns of bird flight and understand that four main forces affect the flight abilities of a bird. They will study the shape, feather structure, and resulting differences in the pattern of flight. They will then look at several articles that feature newly designed planes and the birds that they are modeled after. The final component of this activity is to watch the Nature documentary, "Raptor Force" which chronicles the flight patterns of birds, how researchers study these animals, and what interests our military and aeronautical engineers about these natural adaptations. This activity serves as an extension to the biomimetics lesson. Although students will not be using this information in the design process for their desert resort, it provides interesting information pertaining to the current use of biomimetics in the field of aviation. Students may extend their design process by using this information to create a means of transportation to and from the resort if they chose to.

The 16 lectures in this course cover the topics of adaptive antennas and phased arrays. Both theory and experiments are covered in the lectures. Part one (lectures 1 to 7) covers adaptive antennas. Part two (lectures 8 to 16) covers phased arrays. Parts one and two can be studied independently (in either order). The intended audience for this course is primarily practicing engineers and students in electrical engineering. This course is presented by Dr. Alan J. Fenn, senior staff member at MIT Lincoln Laboratory. Online Publication

This short video and interactive assessment activity is designed to teach fourth graders about multi-step addition of weights with compound units (metric units) - word problems.

This short video and interactive assessment activity is designed to teach fourth graders about adding compound units in years and months.