• 7 Videos, Slides, Films

• 5 Mathematics
• 5 Technology
• 5 Vocational guidance
• 4 Methodology
• 4 Physical geography
• 4 Psychology
• 4 Study and teaching
• 3 Applied mathematics
• 3 Biology
• 3 Chemistry
• 3 Environmental sciences
• 3 Geology
• 3 Physics
• 3 Sociology
• 2 Anthropology
• 2 Crime
• 2 Economics
• 2 Engineering
• 2 Experiments
• 2 Human geography
• 2 Politics and government
• 2 Social aspects
• 2 Social change

• 7 Films Media Group
• 7 Films for the Humanities & Sciences (Firm)
• 2 Uniview Worldwide
• 1 ABC News Productions
• 1 Cambridge Educational (Firm)
• 1 Nobel Media AB (Firm)
• 1 Online Classroom Ltd
• 1 Video Education Australasia

• 7 English

• 2 United States

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