To sign basketball, take both hands with palms wide open and imagine you are holding a basketball. Then pivot both hands back and forth simultaneously, as if you are twisting a basketball as a warm-up exercise right before dribbling it.
Teach your child the basketball sign in the context of watching a game live, on TV, or talking about it based on a story book or cartoon.
This is a useful flash card taught best in conjunction with real-life experience, or when teaching the other sports flash cards.
Get all four volumes of Baby Signing Time...