We have all been in the car with our child making conversation as we make the drive to or from home. You are eager to hear all about their day. As he/she begins to tell you about their most recent experience you realize that you have a difficult time deciphering the story because some of the speech sounds just aren’t quite right or clear. Some speech sound errors are normal during the developmental years. When a speech sound error continues to occur beyond the expected age of mastery, then this is considered a speech sound disorder. The following link will provide the expected developmental norms for speech sounds in Missouri.