Desk and chair manufacturers tell you what are the reasons for the low pass rate of desks and chairs.

At present, in the long-term classroom study of students, the biggest problem is that the material of the desks and chairs does not match the size of the students themselves, which will seriously affect the growth and development of normal students. After in-depth research on the current desks and chairs on the market , in fact, most of them are not passing, mainly due to the following reasons:

1. School bags can only be placed on chairs

 According to the requirements of national standards, the height of desks and chairs of different heights should be based on the correct sitting posture. The correct sitting posture requires that the rear two-thirds to three-quarters of the thighs of the students should be placed on the surface of the chair, and the feet should be naturally flat on the ground so that there is no obvious pressure under the popliteal fossa.

 However, in reality, since the desks and chairs do not provide a place to put schoolbags, most of the chair surface is occupied by schoolbags, and only one-third or less of the student's thighs are on the chair surface.

2. The design of desks and chairs does not meet the standards

 In fact, some tables and chairs in primary and secondary schools do not meet the national standards. In order to obtain more storage space, the headroom under the table is compressed to make it smaller than the national standard. And in this case, it will also cause students to not be able to use the correct sitting posture.

3. The allocation of desks and chairs in some schools is unreasonable

 At present, the types of tables and chairs purchased by schools in some areas through bidding are single or the distribution is unreasonable. It is more common to purchase desks and chairs of the same height range and distribute them uniformly to high schools, junior high schools and elementary schools. However, due to the larger cross-year, just like the students in elementary schools, the height is not enough to match these desks and chairs.

4. The height of the school desks and chairs is not adjusted in place

 Some schools do not personalize the desks and chairs of students according to the height changes brought about by the growth of students at each stage, and some schools adjust the height of desks and chairs at will according to the preferences of students instead of national standards.