The Spinny knife sharpener requires both hands to perform an action similar to riding a bicycle. This movement is designed to improve motor coordination and large muscle motor skills, while enhancing bilateral coordination between the two hemispheres of the brain. When used by two children together, it can promote the development of basic abilities such as cooperation. Returning to this analogy, Spinny is able to consciously cultivate sensory awareness. The case comes from the official website of the Red Dot Award and is only an analysis of the winning cases.
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