• 498 Videos, Slides, Films

• 202 Study and teaching
• 112 Calculus
• 102 Mathematical analysis
• 100 Calculus, Integral
• 100 Differential calculus
• 100 Discrete geometry
• 100 Geometry, Analytic
• 100 Trigonometry
• 66 Science
• 57 Technology
• 56 Training of
• 56 Vocational guidance
• 50 Mathematics teachers
• 48 In-service training
• 48 Leadership
• 34 Activity programs
• 34 Study and teaching (Secondary)
• 31 Statistics
• 30 Probabilities
• 28 Study and teaching (Primary)
• 25 Engineering
• 25 Probability learning
• 24 Applied mathematics
• 21 Teaching

• 259 Films Media Group
• 234 Alexander Street Press
• 161 Infobase
• 98 Films for the Humanities & Sciences (Firm)
• 97 integral CALC (Firm)
• 50 Carroll, Catherine, 1951-
• 50 Mumme, Judith
• 46 Brook Lapping Productions
• 31 Glasshead Productions
• 16 Media 4 Math (Firm)
• 16 Television Junction
• 15 Palomar Community College District (Firm)
• 14 Glasshead Television and Web
• 12 Agency for Instructional Technology
• 12 Teachers TV (Television Channel)
• 10 EBS Trust (Firm)
• 10 Goldhil Video (Firm)
• 10 Standard Deviants (Performing group)
• 10 Video Education America (VEA) (Firm)
• 9 Cerebellum Corporation (Firm)
• 9 Open University
• 8 Double Exposure (Firm)
• 8 Flashback Television (Firm)
• 7 Available Light (Firm)
• 6 Grant, Catherine Miles

• 141 Great Britain
• 7 United States
• 2 Europe
• 1 Africa, North
• 1 Asia
• 1 Finland
• 1 Hungary
• 1 Morocco
• 1 Pacific Area

• 157 Instructional television programs
• 99 Educational films
• 98 Video recordings for the hearing impaired
• 92 Videorecording
• 43 Instructional films
• 41 Nonfiction television programs
• 13 Interviews
• 7 Documentary films
• 6 Video recording
• 4 Biography
• 4 Documentary television programs
• 3 Nonfiction films
• 2 Reality-based
• 1 Educational
• 1 Specifications
• 1 Streaming videos
• 1 Video recordings

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