Some educators think that the tables and chairs as less suitable for training than their desks. Where did they see the teachers lack desks weaknesses forgotten? An important advantage of the desks that seat it fixed, is strictly fixed, while the chair can move at every approaching, the length between the table and chair. Practice shows that this is not always converge with hygiene needs. Faultlessly accurate to be "negative" range, when the chair on which gnaw science granite, a drop, a few inches, tucked under the table. Based on the foregoing correctly observed comfortable backrest chair serves as an additional stand. As we know less "zero" width, if the edge table and chairs are the cutting edge at the joint vertical. Thus a student leans forward, the distance between the top of the legs and spine edge is reduced, the position held by the intensive work the back muscles. When "zero" distance is obtained something – a reduction of some vessels, blood circulation and pulmonary ventilation.

The negative of all, if the chair dismissed from the desk for a considerable distance – it's a kind of "positive" range. All the shortcomings of the "zero" distance in this case worse: the trunk leans further forward, it turns out the side distortion of the spine. Due to the fact that students quite tiny, no concepts of the necessary positions, junior usually equipped with desks. After a long experiment, lecturers were able to answer the question, or that furniture ideal – the old desks or tables. In the experiment, which lasted several years, involving some fifty students of Moscow schools.

In one school classrooms were furnished with desks, in the other – tables. Subjects primary school pupils were selected so that they had the same learning conditions and at school and at home. Medical testing, and the students thoroughly examined every six months have witnessed the sad fact is already known: a variety of disturbances in the posture of students increased from initial years of study to the fourth. But here is the central result. These violations do not depend on the sample of school furniture. By the fifth year of study, the students significantly deteriorates vision, myopia occurs in the vast the number of students. Given all the deviations in vision is still not depend on the type of furniture, they are identical to those schools where the observations were made. So, in the elementary grades, regardless of the furniture, what training classes furnished to particularly strong inclination to observe students.