In this Interactive Lecture Demonstration, students will predict the main issues that might be included in short French language videos treating topics such as endangered species, organic farming, the effect of aerosols on the environment, pollution and sustainable development. They will then view short videos on the topics and reflect on how their prior assumptions meshed with reality.

Using a short video and two primary sources, students will learn about Bell's inventions and his work with the deaf community.

Through a short video and an analysis of two primary sources, students will examine the life of Alexander Hamilton, an important military and political leader.

[Free Registration/Login Required] A marvelous look at the life of Alexander Hamilton shown through primary documents in this interactive site.

This art history video examines the "Alexander Mosaic" c. 100 B.C.E., tessera mosaic from the House of the Faun, Pompeii. This Roman floor mosaic may be based on a lost Hellenistic painting by Philoxenos of Eretria, The Battle of Issus, c. 315 B.C.E.). Museo Archeologico Nazionale, Naples.

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.

In the story, Alexander, Who Used to Be Rich Last Sunday, Alexander receives a dollar from his grandparents that he plans to save, but he spends it all, a little at a time. In this lesson, students count by 2s to fill a container with 100 pennies. They are asked whether 100 pennies is the same amount of money as one dollar. They listen to the story, and as Alexander spends his money, students come up and remove the correct number of pennies from a container. At the end of the story, students are again asked if 100 pennies is the same amount of money as one dollar. Students discuss the choices that Alexander made and give advice on how he could save his money to reach his goal of buying a walkie-talkie.

"Democracy in America" by Alexis de Tocqueville is one of the most influential books ever written about America. While historians have viewed "Democracy" as a rich source about the age of Andrew Jackson, Tocqueville was more of a political thinker than a historian. His "new political science" offers insights into the problematic issues faced by democratic society.

This resource provides information about Alfred Nobel, a scientist who contributed greatly to the world of chemistry. This article includes several pictures and details about Nobel's personal life and professional career.

A complete resource including a biography, chronology, examples of Wallace's published work, quotes, and interviews.

The problem statement describes a changing algae population as reported by the Maryland Department of Natural Resources. In part (a), students are expected to build an exponential function modeling algae concentration from the description given of the relationship between concentrations in cells/ml and days of rapid growth (F-LE.2).

Students are introduced to biofuels, biological engineers, algae and how they grow (photosynthesis), and what parts of algae can be used for biofuel (biomass from oils, starches, cell wall sugars). Through this lesson, plants—and specifically algae—are presented as an energy solution. Students learn that breaking apart algal cell walls enables access to oil, starch, and cell wall sugars for biofuel production. Students compare/contrast biofuels and fossil fuels. They learn about the field of biological engineering, including what biological engineers do. A 20-slide PowerPoint® presentation is provided that supports students taking notes in the Cornell format. Short pre- and post-quizzes are provided. This lesson prepares students to conduct the associated activity in which they make and then eat edible algal cell models.

A work in progress, CK-12's Algebra I Second Edition is a clear presentation of algebra for the high school student. Topics include: Equations and Functions, Real Numbers, Equations of Lines, Solving Systems of Equations and Quadratic Equations.

How to add and subtract rational expressions is explained through the use of examples and a video lesson. [2:09]

Exponential growth problems are examined in this lesson. Students watch a video that reviews how to set up exponential growth application problems. Includes short quiz. [2:27]

Gain an understanding of monomials and polynomials by viewing examples and a video lesson. [0:57]

Provides an explanation, examples, and a video lesson all related to the quadratic formula. [2:45]

Provides an explanation, examples, and a video lesson all related to the radical equations. [3:02]

Distance and midpoint formulas are explained through the use of examples and a video lesson. [1:58]