The years of toddlers and twos should be some of the most joyful years for you and your child. These children grow by leaps and bounds—walking, talking, laughing, singing, helping, and gaining new life experiences every day. Your child now has foods she loves and favorite toys; she has her own likes, dislikes, and opinions. She is naturally developing independence. Despite all this progress, this age range is sometimes called terrible because children may have some challenging behaviors.