Students discover the relationship between the sides of a polygon and the number of diagonals that can be drawn from one vertex, the number of triangles that those diagonals form, and the sum of the interior angles of that polygon.

Tenth graders get a feel for the people behind the American Civil War and the beginning of the conflict. discuss some of the reasons the Confederate and Union soldier fought and explain the motives behind moves made by both the Union and...

Twelfth graders examine Hitler's rise to power leading up to World War II. and how the Treaty of Versailles contributed to Hitler's rise to power in Germany. They identify the important countries involved in the beginning of World War II.

Ninth graders review previously presented material on World War II and discover how the world was at that time. They, in groups, participate in map work designed to explain Axis and Allied countries using toy army men.

Students analyze lunar material using actual moon rocks that were brought back by Apollo astronauts. The teacher and student activity sheets are well-designed.

Students enjoy a hands on activity to understand how and why magma moves inside volcanoes.

High schoolers get an overview of the importance of food safety and become familiar with common foodborne pathogens.

Students explain the concepts and vocabulary of Earth's rotation. They plan imaginary vacations based on the seasons in different locations. This is a very creative lesson plan, which students enjoy.

Students explain and learn the practical application of standard deviation. They compare cities in the U.S. and discover whether cities closer to the ocean have more consistent temperatures. Useful resources are given.

Students research El Nino and its effects all over North America using Web Resources. Working in teams, they present their findings. They look for connections and relationships between animal behavior and climate.

Middle schoolers are introduced to the different climates and vegetation of Africa, and compare them to similar climatic regions found in the United States.

Students are introduced to Africa. The purpose of this lesson is to find out what students all ready know about the continent of Africa, and what students are interested in learning more about. They focus on the physical features of Africa.

Students conduct an experiment called "What's the Solution? Acid, Base or Neutral." to determine the differences between these types of substance.

Pupils design a cardiovascular fitness program that encourages them to implement it in their daily lives.

Young scholars compare and contrast the events of the Pearl Harbor Attack and the attack on September 11, 2001 by examining the similarities and differences between these two events.

Students create a jack-o-lantern glyph that accurately represents his or her answers to a series of questions. The completed jack-o-lanterns are displayed in the classroom and the class interprets the data.

Students practice using a World Almanac by completing the provided worksheet on animals.

Fifth graders construct a winter emergency kit for their parents' car and list five things to do or not to do when stranded in a car during the winter.

Students in ESL, ELL take part in small groups according to their language proficiency skills and to determine how to problem solve with a language barrier.

Students examine the impact of the nonprofit sector on society by researching philanthropic Websites. They role-play as minority groups that used alternative power structures to change society and write in their journals on a...

Students explore the images and idioms related to love in their own culture. They examine new rituals recently created in Japan by reading and discussing "Osaka Journal:Japanese Date Clubs Take the Muss Out of Mating."

Students experiment to show the components that dictate centripetal force in an object. They observe how the object moves in a circular path around a central point.

Students research the uses and symbols of the International Phonetic Alphabet. They complete a worksheet to translate and transcribe phrases of English into the International Phonetic Alphabet.

Students use their knowledge to crash a comet into Jupiter or make a comet fly past the planet without colliding with it.