The design serves as a teaching tool to educate children on over 20 directional prepositions and their subtle differences, such as "up", "down", "below", and "under". The device allows children to manipulate partially hollow objects, including balls, cubes, cones, stars, cylinders, and pears, covered with various textures, such as "porous", "rough", "smooth", "hard", "soft", "liquid", "solid", "lumpy", "gritty", and so on, along the rods while listening to accompanying sounds that denote the related movement.
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