This essay discusses on how the zone of proximity is practical and how it can help teachers as an important conceptual teaching tool. The essay explains the importance of understanding the ZPD of each child in a group and how it helps the teacher in giving specific target assistance to every child in a group. The ZPD tool will not only help the teachers but also the administrators can use it to ensure that they promote higher quality differentiated instruction in schools and also help them in dealing with more motivated students and teachers.