Stacking cups are a deceptively simple toy that teaches multiple concepts at once. At 6-9 months, babies are developing their pincer grasp and beginning to understand size relationships. Nesting and stacking cups let them explore these concepts through hands-on play.
Babies at this stage love knocking things down — which is actually learning about cause and effect. Stack the cups up and let baby topple them. As they grow, they'll start trying to stack them independently, building problem-solving skills and spatial awareness.
Stacking cups are also great for bath time, water play, and sand play. They teach concepts like big vs. small, in vs. out, and full vs. empty. For such an inexpensive toy, they provide months of developmental value across multiple play scenarios.
