The normal developmental process of babies is of particular concern to families. The following are developmental milestones for infants aged 7-12 months: 7 months of age 1. Gross motor: can roll over to either side, can sit alone, and begin to try to stand up by holding on. 2. Fine motor: can play with small objects, can grasp things with each hand, and can change toys from one hand to the other. 3.Language skills: can call “baba, mama” and other sounds, but can’t match the number of people, and can make sounds to express happiness or displeasure. 4. Cognitive ability: Can understand their own names, turn their heads when they hear their names, and hold food (such as cookies) to eat by themselves. 8 months old 1.Large movements: can sit up and lie down by themselves 2.Fine movements: can clap their hands and pass toys with both hands. 3.Language ability: can imitate sounds, repeat simple syllables pronounced by adults, and speak to themselves. 4.Cognitive ability: know adults’ expressions, observe adults’ actions, begin to recognize objects, play with toys with hands continuously, and ring bells consciously. 9 months of age 1. Gross motor: can crawl, can grasp things and stand up 2. Fine motor: can pick up small things with thumb and index finger, can grasp food with hands 3.Language skills: can spell out different sounds ambiguously, some can clearly call out “Dad” and “Mom”, and can understand several complex sentences, such as “goodbye”, etc. 4. Cognitive ability: understand the difference between various things, and respond to their own names, such as waving their hands. They can give social signals, such as holding out their hands for a hug when they see someone they know. 10 months of age 1.Large movements: can stand alone for a while. 2. Fine motor: thumb and index finger movements are proficient, both hands can move in a coordinated manner, and can hold the bottle by themselves. 3.Language ability: begin to use single words, can use less vocabulary. 4. Cognitive ability: can imitate other people’s movements, can wave and say goodbye, know the names of common objects and people, can repeatedly do the action of being praised. 11 months of age 1, large movements: can climb steps, some babies can hold objects squat to get things, can hold a chair or stroller can walk a few steps. 2, fine motor: can use two fingers to pinch things, can put the blocks into the cup. 3.Language ability: consciously make a word sound, can act according to the semantic meaning of others (such as stop). 4.Cognitive ability: begin to recognize the correlation of things, some babies will know the meaning of “no”. 12 months of age 1, gross motor: crawl skillfully, can climb up the stairs, can stand without holding something, can hold the stroller or other tools to walk, and even walk independently by themselves. 2.Fine motor: can grasp accurately, can point to things with index finger, can stack blocks, can drink independently from a straw cup. 3.Language skills: can call out the names of objects, such as “lamp” and “mommy”. Some babies can’t say specific words, but they can say many vague words. 4.Cognitive ability: can point to things, such as pointing to their hands and eyes, and understand simple commands.