Digital Chalkboard is shutting down and will no longer be available after January 26, 2022.
California is investing in a new curated repository of free, high-quality, open source instructional resources for local educational agencies and educators to use. Please visit California Educators Together and sign up for your free account today.
Please contact us at, if we can be of further assistance.

The Egyptian Woodcarving

bithell4dThe Egyptian theme continues with the student presentation of the ancient woodcarving problem. We like how Ms. Bithell brings it up to date by introducing the problem as part of an Internet auction. 

PDROM Bar Video

Enough about stuffed marine mammals. Let's view the clip.

bithell4cTo summarize, the woodcarving's dimensions in the picture are 10 by 7.5 centimeters and the actual width is 15.5 inches. The problem is to determine the actual length (the longer dimension).

In the following assessment, you first will confirm the results obtained by the students. Then, you will see how, with a very minor change, a problem such as this can be extended to incorporate more algebraic thinking and language. Specifically, instead of telling the students that the actual width is 15.5 inches, you can tell them that the actual width is w inches, where w is some positive number.