Learning rotating disk

The invention provides a learning rotating disk and solves the problems that an existing learning rotating disk is large in size and inconvenient to carry, and cannot motivate student 's innovative consciousness well. The learning rotating disk comprises a middle large disc. The upper portion and the lower portion of the large disc are symmetrically and respectively provided with a cover plate. Acavity is formed between the cover plates and the large disc. The cavity is rotatably equipped with a first rotation disc, a second rotation disc, a third rotation disc and a fourth rotation disc. Theouter end surfaces of the first rotation disc, the second rotation disc, the third rotation disc and the fourth rotation disc are flush, and the inner end surfaces are flush. Each cover plate is provided with an arc gap. The learning rotating disk is novel in structure and ingenious in concept; by rotating different big gear wheels, words on different rotating disks appear in the gap randomly soas to develop thinking and