Overview Infant Age Gross Motor Fine Motor Communication Cognitive 2 months Holds head up when prone Eyes track past the midline Alert to sound Social smile Recognize Parent 4 months Rolls front to back Sits when propped Grasps a rattle Laughs Soothed by voice Orients towards voice 6 months Stis alone Crawls Reaches with hands Transfer objects Babbles Stranger anxiety Feeds self 9 months Pulls to stand Immature pincer grasp Says mama and dada Waves bye Plays gesture games 12 months Walking alone Fine pincer grasp Few words One step commands Points to object Toddler Age Gross Motor Fine Motor Communication Cognitive 15 months Stoops and recovers Scribbles 3-5 words Uses spoon and cup 18 months Runs well Stacks 3 cubes Points to 1-3 body parts Helps in the house 24 months Throw and kick ball Draw a line 50 word vocabulary 50% intelligable Parallel play Removes clothing Preschool Age Gross Motor Fine Motor Communication Cognitive 3 years Rides tricycle Copies a circle 3 word sentences 75% intelligable Brushes teeth with help 4 years Hops on 1 foot Copies a square Plays cooperatively 100% intelligable Knows 4 colors 5 years Skips Copies a triangle Defines words 5 word sentences Dresses self School Age Age Gross Motor FIne Motor Communication Cognitive 6-10 years Reads Understands death 11-18 years Formal operations Abstract reasoning Formation of personality Tanner Stages of Sexual Development Stage Male Changes Female Changes 1 Childhood Childhood 2 Pubic hair develops ↑ Testes size Pubic hair develops Breast tissue elevation 3 ↑ Pubic hair, darkens, and becomes curly ↑ Penis size/length ↑ Pubic hair, darkens, and becomes curly 4 ↑ Penis width Darker scrotal skin Development of glans Raised areola 5 Adult Adult Areola is no longer raised