Get a Baby to Stop Throwing a Cup - Say no. Every time your child throws the cup, pick it up and in a firm tone say "No throwing."
Stand guard. Your child consistently throwing cups can get tiresome, especially if the cups are full and make a spill. It might be that you need to stand with your child and consistently offer him a drink, or respond to his request for one if he is able to speak. Regardless, you should hold the cup. Keep the beverage near you and out of your child's reaching distance.
Get a Baby to Stop Throwing a Cup
Take preventative measures. Prevent picking up by purchasing plastic children's dinnerware that suctions to the high-chair tray or tabletop. Ensure your child has a straw so that they are still able to drink.
Redirect. If it is not mealtime and your child still insists on throwing a cup or glass, redirect her. Take the object she has thrown and again offer her a stern "no throwing" and then give your child an object she can throw, such as a soft ball. Explain the difference to her about why that item is appropriate for indoor-playing and why the cup is not.
Time out. If the child is old enough to comprehend your words, or is old enough to speak and still does not desist in throwing things, issue a time-out. If you are consistent with this method, your child will eventually recognize whenever he throws his cup he will be sent for a time-out punishment and desist.
Whoops! How cute. Little Timmy threw his cup across the floor. You'd better fetch it. Whoops! He did it again. Upon reaching for the cup for the fifth time, Timmy's actions have stopped becoming cute and veered more toward annoying. It's natural for your child to repeat the action over and over again, as they are likely just learning to grasp things and comprehend touch and gravity. However, this aggravating action now has you seeking a way to break your baby's bad habit. - by eHow
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