Practicing Democracy in the Classroom

Duration: 22

Genre: Educational | Reality-based

Creator: Encyclopaedia Britannica Educ Corp

Format: 16mm

Color: B&W

Sound: sound

Description: Describes contributions of early scientists in the study of vacuums and atmospheric pressure which lead to the invention of the air pump and the barometer. Uses a reenactment of Otto von Guericke's Magdeburg hemisphere experiment of 1654 to explain that the atmosphere exerts external pressure. Describes the action of an air pump and discusses the properties of a vacuum. Includes scene of a modern laboratory experiment demonstrating that air has weight. Shows practical applications of knowledge about air pressure and vacuums. Production supervisor, Robert Longini; collaborator, Harvey B. Lemon., Shows how a high school teacher employs a democratic method of teaching American history in order to promote good citizenship among his students. Points out that democratic techniques are more effective in teaching than laissez-faire and authoritarian methods.

Complete Record: Describes contributions of early scientists in the study of vacuums and atmospheric pressure which lead to the invention of the air pump and the barometer. Uses a reenactment of Otto von Guericke's Magdeburg hemisphere experiment of 1654 to explain that the atmosphere exerts external pressure. Describes the action of an air pump and discusses the properties of a vacuum. Includes scene of a modern laboratory experiment demonstrating that air has weight. Shows practical applications of knowledge about air pressure and vacuums. Production supervisor, Robert Longini; collaborator, Harvey B. Lemon., NOTE: Two (or more) records have been merged together to create this data.