This gear series product is a science toy for children aged 5 and above. By manually operating a crank, the crank can move continuously while the gears can rotate intermittently or at different speeds. Through using it, children can learn about the principles of intermittent motion in a six-crank, single-grooved gear system and the basic principles of dynamics. When operating, the crank drives gears of different sizes and colors to rotate either intermittently or at different speeds. In addition to providing children an experience of mechanical beauty and a preliminary understanding of physical rotation, it can also help develop children’s ability to make comparative observations, hand-eye coordination, large and small muscle movement, and hands-on and cognitive skills.

At the same time, it can transfer the rotational principles of the six-crank, single-grooved gear system to daily life scenarios, further enhancing children’s understanding of the complex rotational principles that exist in real life. This toy material can also be used as part of designing the wall displays in the science discovery room at kindergartens.