The cognitive development of young children includes four components: Exploration and discovery, memory, problem solving, and imitation and symbolic play. Young babies enter the world ready to learn and begin immediately to acquire and process new information. Based on this understanding, identify the importance of promoting cognitive development for infants and toddlers and note indicators and examples of behaviors for the four components listed above at each of the three stages: Young infant (birth to 8 months), older infant (6-18 months), and toddler (15-36 months).