| Child's Age |  Mastered Skills (most kids can do) | Emerging Skills (half of kids can do) | Advanced Skills (a few kids can do) |
| 1 month | • Lifts head when lying on tummy • Responds to sound • Stares at faces | • Follows objects briefly with eyes • Vocalizes: oohs and aahs • Can see black-and-white patterns | • Smiles, laughs • Holds head at 45-degree angle |
| 2 months | • Vocalizes: gurgles and coos • Follows objects across field of vision • Notices his hands • Holds head up for short periods | • Smiles, laughs • Holds head at 45-degree angle • Makes smoother movements | • Holds head steady • Can bear weight on legs • Lifts head and shoulders when lying on tummy (mini-pushup) |
| 3 months | • Recognizes your face and scent • Holds head steady • Visually tracks moving objects | • Squeals, gurgles, coos • Blows bubbles • Recognizes your voice • Does mini-pushup | • Rolls over, from tummy to back • Turns toward loud sounds • Can bring hands together, bats at toys |
| 4 months | • Smiles, laughs • Can bear weight on legs • Coos when you talk to him | • Can grasp a toy • Rolls over, from tummy to back | • Imitates sounds: "baba," "dada" • Cuts first tooth • May be ready for solid foods |
