45 Minute Class Rule: Why is a period in schools only 40 to 45 minutes, how and when was it decided?
45 Minute Class Rule: Usually, as soon as classes start in schools, the first question of children is when will the period end. Sometimes the period of 45 minutes passes in the blink of an eye, and sometimes that time seems much longer. But have you ever wondered why in most schools one period lasts…