Usage: Teach your baby the brown sign as a secondary color after she has grasped the primary colors, as well as black and white. The reason for this is that if you go too fast it can be hard for your baby to learn to distinguish colors that are too simple. (Black for example is similar to brown – so you don’t want to introduce them at the same time)
To learn how and when to teach the sign, take a look at the brown page for a video, diagram, and tutorial.
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