FROG Zero of Fiasher Development means “zero energy building system,” which is very interesting. It will not only save us from the sky rocketing prices of energy and gases but will also help us save the earth with this zero emission system. This prefab classroom of the future was assembled and finished by the contractor Fisher Development in just six days which is very favorable especially to those places that needed to have a classroom in the soonest time. In addition, the said company can sell these classrooms for less than 25 percent cheaper than its competitors can. Hope that this healthy, eco-friendly, and architecturally designed classrooms will be available soon.