A sundial is the oldest tool used to tell time. Make a simple sundial using rocks, a paper plate, and a pencil. Track how the shadow made by the sun moves throughout the day.
The book, Make Your Own Sundial (9780756580964) [Order Bulk Books, Wholesale, Quantity Discount] with ISBN# 9780756580964 in by may be ordered in class sets of books and bulk children's books for your classroom novel set needs. Minimum orders start at copies.