24:05
BBC SCHOOLS - MATHS TOPICS: Trigonometry 1 (with Continuity Errors) (TX 21.9.83)
Vintage Schools TV
15:20
BBC SCHOOLS - MATHS TOPICS: Trigonometry 5 (TX 19.10.83)
17:20
BBC SCHOOLS - MATHS TOPICS: Trigonometry 4 (TX 12.10.83)
19:54
BBC SCHOOLS - MATHS TOPICS: Trigonometry 3 (TX 5.10.83)
23:06
BBC SCHOOLS - MATHS TOPICS - Trigonometry 2 (TX 28.9.83)
