Math Is Fun
Math Is Fun: Sun Clock
The mathematics resource discusses the sun clock. Students review the concept using the provided notes and then answer questions to check for comprehension of the topic.
Exploratorium
Exploratorium: Making a Sun Clock
Learn how to use the sun to tell time. This simple activity reinforces the concepts of light and shadow, night and day, time, and geographical north vs. magnetic north.
Curated OER
Eternal Egypt: Sundial (Sun Clock)
Aristarchus of Samos invented this type of sundial. It is in the form of a concave bowl, but is not like the usual sundial because it is hemispherical in shape, rather than circular.