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Chalk And Chalkboards (1959)
Автор: A/V Geeks 16mm Films
Загружено: 20 авг. 2017 г.
Просмотров: 23 194 просмотра
Описание:
Discusses the physical properties of chalk and chalkboards, showing what they are made of and how they are cared for. Explains how the chalkboard may be used as an effective teaching aid.
We digitized and uploaded this film from the A/V Geeks 16mm Archive. Email us at [email protected] if you have questions about the footage and are interested in using it in your project.
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