Главная 7 Child up to 1 year 7 Infant development in one year nine months: height, weight, increase, nutrition, vision, what should be able to, toys

Infant development in one year nine months: height, weight, increase, nutrition, vision, what should be able to, toys

Child development in 1 year 9 months

With each new month your baby becomes more mature, it’s time to develop his right habits and skills of independence.

9.9-15.1 kg.

46.5-52.0 cm.

47.0-56.0 cm.

9.9-14.2 kg.

45.4-51.2 cm.

47.5-55.0 cm.

In 1 year and 9 months your baby has grown considerably and grown stronger.

Weight gain and increase in body length at this age is very individual.

Average body length children in 1 year 9 months is:

for boys – 80 – 87 cm;

for girls – 80-85 cm;

Body mass in 1 year 9 months (average):

for boys – 11-13.5 kg;

for girls – 11-13 kg.

boys – 47.5 – 50.5 cm;

girls – 46.5 – 49.5 cm.

In 1 year 9 months the baby can have up to 20 teeth (2 lower middle incisors, 2 upper middle incisors, 2 upper lateral incisors, 2 lower lateral incisors, 4 first molars (2 upper and 2 lower), 4 canines (2 lower and 2 upper), 4 second molars (2 upper and 2 lower)).

To determine the required number of milk teeth at the age of 6 to 24 months (2 years), you can use the formula:

Where N is the age of the child in months;

X – number of baby teeth.

Neuropsychological development of the child in 1 year 9 months

At this age, many babies become very sociable and communicative, easier to come into contact with strangers.


Analyzes and examinations of healthy children are not carried out, are appointed only on indications.

In the 20th month (1 year 8 months) a second revaccination from poliomyelitis (ReV2 - OPV) is done.

At this age, it is very useful for the development of the toddler of the game to correlate objects in form. To do this, perfectly fit boxes of different shapes with covers, large puzzles, special development benefits.

You can also offer the child games in which you need to sort objects by color, size.

To preserve the interest of the child, present a learning activity in the form of a game. And do not forget to praise your child for diligence and diligence.

For the development of speech it is necessary to read fairy tales, poems, nursery rhymes, sing songs.

Also useful at this age are finger games and games for the development of fine motor skills.

Do not forget that life is a movement, therefore, developmental activities should alternate with moving games.

I really like kids at this age to play with collapsible toys. Such as nesting dolls, caps, pyramids.

Suggest a new book for the baby.

Toys can be very diverse, most importantly, make sure that they are safe for the baby.

Your baby is growing up, something is going very well for him, but something else does not work out, show more patience, more often give him the opportunity to be more independent. Include him in his studies and affairs, give him only a good example. He will feel his importance and develop as an independent person.

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