The Gamification of Learning and Instruction: Game-based Methods and Strategies for Training and Education

With Intelligent Quartz tech, this Timex watch is the perfect adventure companion. Features include a fly-back four-hour chronograph, electronic compass with magnetic declination compensation and a second time zone.

Gemstones may have been treated to improve their appearance or durability and may require special care.

The natural properties and composition of mined gemstones define the unique beauty of each piece. The image may show slight differences to the actual stone in color and texture.

Emerald is the birthstone for the month of May.