The present disclosure is generally directed to a system and method of operation for a convertible door system including a door accessible compartment having a moveable dividing wall that substantially divides the compartment into a first and a second sub-compartment. An educational method includes prompting a student to engage in an interactive cognitive learning task which involves full body motion, thereby enabling the student to reach the enhanced learning state which results from elevated metabolic rate, and synergistically engaging the student’s kinesthetic learning facilities. A method of stimulating the proliferation or survival of a hematopoietic cell is also disclosed. The VOSIS veterinary orthopedic kit consists of a rectangular container in the form of a box having a lid and being divided by partitions into a plurality of sections.