Books
2 results found| Title | Authors | Description | OpenBook ID | |
|---|---|---|---|---|
|
Shadow geometry | Daphne Harwood Trivett | Introduces the principles of geometry through the use of shadows. | OL6797286W |
|
Time for clocks | Daphne Harwood Trivett | Provides instructions for several easy-to-make clocks that demonstrate the concept of time. | OL6797287W |