This particular system was presented back in 1982. It was an initiative of Nigerian Federal government. Those numbers stand for the number of years kids spend on certain stages of schooling. For instance, six stands for six years in the elementary school, and so on. Presently, many believe this system has completely failed and it was even acknowledged by the former president of Nigeria Jonathan Goodluck during his meeting with the educators. The system failed to deliver the desired results and even more shattered the weak educational industry of Nigeria.