This gear series product is a science-themed toy for children aged 5 and above. By manually operating gears in different positions, the active parts in the gears will move continuously while the passive parts will move intermittently, enabling the rotational motion of the gears. Through operation, children can learn about the principles of intermittent motion between double crank and double grooved gears, as well as the basic principles of dynamics. When operating gears of different groove patterns, sizes, and colors under the same force, their rotation will be intermittent. In addition to providing children the experience of mechanical beauty and a preliminary understanding of physical rotation, it can also help develop children’s ability to observe differences, hand-eye coordination, large and small muscle movement, and hands-on and cognitive abilities.

At the same time, it can transfer the rotational principles of double crank and double grooved gears 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.