| 摘要 |
A teaching aid includes a cover for substantially covering a support stand, wherein the cover has an outer surface and an inner surface, and the inner surface is adapted to conform to the support stand. The support stand may be an ordinary safety cone. The cover may be made of heavy fabric. Manipulative teaching devices are connected to the outer surface for learning and developing manipulative skills. The manipulative teaching devices may be implemented with clothing fasteners, such as zippers, buttons, laces, snaps, hooks and eyes, and hook-and-loop fasteners.
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