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 footage@avgeeks.com if you have questions about the footage and are interested in using it in your project. Buy this film on DVD.

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.