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Defines terms used by economists, such as "demand," "change in quantity demanded," and "change in demand."

Produced by the BBC for the British Open University; Looks at the Euclidean axioms condensed into…

Producer, Diana Potter ; director, Richard Mervyn ; photographer, Frank Hodge ; graphic designer, Bernard Allum ; film editor, Rosemary…

Producer, Diana Potter, director, Richard Mervyn, photographer, Frank Hodge, graphic designer, Bernard Allum, film editor, Rosemary…

Defines terms used by economists, such as, "supply," "change in quantity supplied," "change in supply," and…

Presents introductory ideas in algebra. Includes a discussion of the meaning and uses of equations and…

Produced by the BBC for the British Open University Introduces the use of algebraic symbols, equations…

Produced by the BBC for the British Open University; Introduces the use of algebraic symbols, equations…

Produced by the BBC for the British Open University; Howard Schachman of the University of California…

Asserts that the notion of children as small, inefficient adults evolved into a postindustrial concept of…

Asserts that the notion of children as small, inefficient adults evolved into a postindustrial concept of…

Produced by the BBC for the British Open University Introduces trigonometry as the mathemathical study of…

Produced by the BBC for the British Open University; Introduces trigonometry as the mathemathical study of…

Explores the relationship between a young girl, Anna, and her grandfather, Poppy. Depicts her feelings and…

Uses on-site photography, models, and graphics to explore the skill in planning and building that…

Colin Cunningham; Ostia, the ancient port of Rome, is used as an example of Roman town…

Title from data sheet; Made in 1979; Intended audience: High School through college and adult; Issued…

Executive producer, Catherine Freeman ; producer/director Geoff Dunlop Narrator, Bill Patterson Ten years of civil war…

Executive producer, Catherine Freeman, producer/director Geoff Dunlop; Narrator, Bill Patterson; Ten years of civil war…

Contrasts the consumer-oriented, energy-intensive lifestyle of the United States with the poorer subsistence level…

Contrasts the consumer-oriented, energy-intensive lifestyle of the United States with the poorer subsistence level…

Examines the conditions that brought about the beginning of life 4.6 billion years ago and…

Examines the conditions that brought about the beginning of life 4.6 billion years ago and…

Discusses the complex food web of the ocean, including plankton, fish, birds, and humans. Uses underwater…

Discusses the complex food web of the ocean, including plankton, fish, birds, and humans. Uses underwater…

Using photomicrography, animation, and footage shot in Brunei on the coast of the South China Sea…

Using photomicrography, animation, and footage shot in Brunei on the coast of the South China Sea…

Studies the adaptations of plants on botanically unique and isolated New Zealand which, because it has…

Studies the adaptations of plants on botanically unique and isolated New Zealand which, because it has…

Examines the recolonization of plant life since the Ice Age 20,000 years ago. Shot on…

Examines the recolonization of plant life since the Ice Age 20,000 years ago. Shot on…

Looks at the interrelationship of members of the plant and animal kingdoms as it applies to…

Looks at the interrelationship of members of the plant and animal kingdoms as it applies to…

Title from data sheet; A segment of CBS reports, hosted by Harry Reasoner; Intended audience: Ages…

Produced by the British Open University Discusses the relationship between a transport system, in this case…

Produced by the British Open University; Discusses the relationship between a transport system, in this case…

With film guide; Written, produced and co-directed by Phillip R. Blake, directed, photographed and edited…

With film guide;Written, produced and co-directed by Phillip R. Blake, directed, photographed and edited…

The familiar fairy tale of Cinderella is retold without narration through puppet animation, and a specially…

Produced by the BBC for the British Open University; Studies the production of gas and chemical…

Shows how technicians measure, mold and fit artificial limbs. Discusses how design requirements for function, comfort…

Shows how technicians measure, mold and fit artificial limbs. Discusses how design requirements for function, comfort…

Produced by the BBC for the British Open University; Explains that oceans have circulation patterns analogous…

archaeologists sifting through rocks, bear skull, saber tooth tiger, rocks, bones, rocks, rocks, bones, skulls, rocks

animated. The film begins by explaining the two definitions of demand - as the desire for a…

Produced by the BBC for the British Open University; Looks at the basis of different types…

Shows how children playing with dolls imitate real-life situations. Demonstrates how this type of play…

Focuses on limited and exhaustible resources. Examines use of water, stone, metals and fossil fuels. Uses…

Examines ways in which the human environment contributes to the incidence of mental retardation. Discusses ways…

Produced by the BBC for the British Open University; William Lipscomb, Nobel laureate in chemistry, and…