Curated OER
Telling Time Puzzles
In this reading clocks learning exercise, learners use the three parts of the time puzzle that is shaped like a wrist watch. Students use the watches to practice telling time.
Shodor Education Foundation
Shodor Interactivate: Lesson: Clock Arithmetic and Cryptography
This lesson plan is designed to guide young scholars in practicing their basic arithmetic skills by learning about clock arithmetic and cryptography. Linked resources include helpful applets.