• 15 Videos, Slides, Films

• 11 Methodology
• 8 Study and teaching
• 7 Physical geography
• 7 Psychology
• 5 Anthropology
• 4 Biology
• 4 Chemistry
• 4 Crime
• 4 Environmental sciences
• 4 Experiments
• 4 Geology
• 4 Physics
• 4 Politics and government
• 4 Social control
• 4 Vocational guidance
• 3 Applied mathematics
• 3 Geography
• 3 History
• 3 Mathematics
• 3 Nationalism
• 3 Science
• 3 Slopes (Physical geography)
• 3 Technology

• 12 Films Media Group
• 11 Films for the Humanities & Sciences (Firm)
• 4 Uniview Worldwide
• 3 BBC Worldwide Ltd
• 2 ABC News Productions
• 1 Canadian Broadcasting Corp. (Firm)
• 1 Canadian Broadcasting Corporation
• 1 Infobase
• 1 LeBlond, Rachael
• 1 Online Classroom Ltd
• 1 Rasheem, S.
• 1 Sage Publications

• 15 English

• 4 United States
• 3 Europe
• 1 Canada

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