• 42 Videos, Slides, Films

• 29 Study and teaching
• 18 Science
• 10 Study and teaching (Secondary)
• 9 Mathematics
• 7 Education
• 4 Curricula
• 3 Activity programs
• 3 Language arts
• 3 Technology
• 3 Vocational guidance
• 2 Ability testing
• 2 Citizenship
• 2 Community and school
• 2 Drama in education
• 2 Gifted children
• 2 Physical education and training
• 2 Physics
• 2 Reading
• 1 AIDS (Disease)
• 1 Art
• 1 Art in education
• 1 Biology
• 1 Boys
• 1 Breast
• 1 Business education

• 28 Alexander Street Press
• 3 Glasshead Productions
• 1 Available Light Productions

• 42 English

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