2. The standard height of grade two students in primary school: the height of boys117.8-128.4cm, and the height of girls115.7-126.0cm. ..
3. The standard height of the third grade students in primary school: the height of boys 123.2- 134.0cm, and the height of girls122.3-132.7cm. ..
4. The standard height of fourth-grade pupils: male height 127.0- 138.4cm, female height126.3-138.7cm. ..
5. The standard height of fifth-grade pupils: male height131.0-143.0cm, female height131.5-144.6cm..
6. The standard height of sixth grade pupils: the height of boys 135.5- 148.6cm, and the height of girls135.9-151.0 cm. ..
Height refers to the vertical distance from the vertex (V) to the ground, generally in centimeters (cm), and commonly used as "meters" (m). Height is the length of the longitudinal part of the human body, which originates from the longitudinal growth of the human body and is greatly influenced by genetic factors. The material basis of human height is bones.
Height is the most important index of body shape characteristics, which has attracted worldwide attention. There are many methods to predict height, such as bone age prediction, foot length prediction, parents' height prediction, children's and adolescents' height prediction in the current year, height prediction at the beginning of adolescence, mathematical prediction and so on.
There are many ways to predict the height. The current bone age and current height can be used to predict the adult height: the theoretical basis is that the height of each age stage is highly correlated with the adult height, R=0.8. According to the present bone age, we can predict how tall it may be.