9-month-old baby's development index: becoming a problem child.
After 8 months, the baby is more athletic, more active, never stops exercising when he is awake, and does not need passive gymnastics training from his mother. Mothers or caregivers can't take their eyes off the baby, because the baby may make a mess at any time.
Physical appearance and growth
The growth law of the baby this month is similar to that of last month.
Physical standards:
Weight: eight months old, male baby, weighing 6.9 ~10.8kg; Female baby, weighing 6.3 ~ 10. 1 kg.
Length: the length of the baby boy is 65.7 ~ 76.3 cm; The length of the baby girl is 63.7 ~ 74.5cm.
Teeth: grow 2-4 deciduous teeth.
Law of development:
Weight: The baby is expected to gain 0.22 ~ 0.37kg this month.
Height: the baby's height can be increased by 1.0 ~ 1.5cm this month.
Head circumference: the head circumference increased by 0.67 cm.
sports
Sit and lie freely: you can sit stably for a long time without relying on anything. When sitting, you will lie down or lie down by yourself instead of passively falling down.
Began to climb forward: but the limbs are not coordinated, and the stomach begins to leave the bed surface, but sometimes it still climbs forward with the stomach.
Support can stand up: the railing at the bedside can stand up, but it will not take a step forward by itself. At the end of nine months, some babies can stand on their own for a few seconds without taking anything.
Physical skill development
Thumb and forefinger can pick up very small things. At this time, the child will have a very important action, that is, he likes to dig things with his index finger, such as digging the desktop and digging the wall. I will clap my hands like my mother, but there is no noise. You can tear up the paper and eat it in your mouth. Bring the baby to the dining table, and the baby will pat the table with both hands. I'll pick up the spoon and put it in my mouth. If I fall, I will bow my head to look for it. Can pull curtains or curtain ropes and swing from side to side.
Language development
Now he can understand more languages, and your communication has a new meaning. Before he can say a lot or anything, he may understand more than you think. Talking to your child as much as possible can increase your child's understanding ability, tell him what is happening around you, and make your language simple and special. Whether reading to him or talking to him, give your child enough time to participate. Ask questions and wait for the child's response, or let the child guide himself. By this time, he may have been able to answer questions in simple language; Can do 3 ~ 4 kinds of action expression language; I have different reactions to different sounds. When you hear the sound of "no" or "don't move", you can temporarily stop your activities, know your name, stop your activities when you hear your mother say your name, and continue to imitate your voice. When you hear a familiar voice, you can hum along, say a word, express your actions, such as waving when you say "no" and pointing to something when you say "this, that".
visual development
What a baby sees can be remembered and fully reflected. You can know not only the looks of your parents, but also their figure and clothes.
Selectively look at what he likes to see, such as cars running on the road, children playing, small animals, and he can see smaller objects. Babies like to watch moving objects or moving objects very much, such as the second hand of clocks, pendulums, rolling escalators, rotating knickknacks, flying butterflies, moving insects, etc., and they also like to watch the ever-changing TV advertising pictures.
The mother began to know colors and kept teaching the baby: "This is a red balloon, this is a yellow balloon, and this is a green balloon." Although the baby still doesn't understand the change of color and can't distinguish it, he can remember the color. He put balloons of different colors in different places. His mother asked, "How about a red balloon?" The baby will turn its head to the red balloon. "What about the yellow balloon?" The baby will turn its head to the yellow balloon again.
Have a preliminary understanding of gender. If the father always plays with the baby in his arms, the baby likes to be held by a man about his age. Babies held by mothers like to be held by women about their mother's age.
Cognitive state
At this time, the baby may have learned to shake rhythmically with the music and be able to recognize the five senses. Can know some objects in pictures, for example, he can find some familiar ones from a large number of pictures. Consciously imitate some actions, such as drinking water and stirring in the water with a spoon. Maybe he already knows that adults are talking about themselves and that he is shy; Will cooperate with dressing. I will play games with adults. For example, adults hide their faces behind paper, and then show their faces to children. Children will be happy, take the initiative to participate in the game, and wait for adults to appear again where they appeared last time.
Emotional and social development
Some time ago, the baby was frank and lovely, and got along well with you; At this time, she may become nervous and persistent, and she is easily afraid in front of strange environments and people. His behavior pattern changed greatly because, for the first time in his life, he learned to distinguish strangers from familiar environments. Anxiety that can be expected at this stage is evidence of a healthy relationship between you and your child. Anxiety about strangers is a milestone in children's emotional development. Even relatives or caregivers who used to get along well with their children now hide or cry, especially when they get close to them in a hurry. This situation is a normal reaction, so don't worry. At the same time, he is more attached to you, which is a manifestation of separation anxiety. Just when he begins to realize that every object is unique and eternal, he will also find that there is only one you. When you walk out of his sight, he knows that you are somewhere, but you are not with him, which makes him more nervous. He has no concept of time, so he doesn't know when you will come back or whether you will come back. When you are old, the memories of getting along with you in the past will comfort him when you are away, and he will look forward to reuniting with you. Emotional separation generally reaches its peak from 10 to1August, and gradually disappears after one and a half years. Don't complain about his possessiveness, try to keep more care and good mood. Your actions can teach him how to express love and how to get love, which is the emotional basis for his survival for many years to come.
Parent-child game
Cup (self-reliance, fine movements)
Let the baby sit in a high chair, or sit at a table with a small tray in front of him. Put a small cup in the small hand tray. First, you hold up the cup, pretend to drink the contents, and say something like "ah, ah" or "delicious, delicious". Then you hold the cup to the baby's mouth, and you say the same thing when the baby pretends to drink water. Finally, put the cup on the tray to see if the baby will lift the cup to his mouth.