PAT stands for Progressing Achievement Test. It is an assessment test, that measures a student’s capability, understanding, learning, and progress over time. PAT uses the achievement scale to measure the magnitude of knowledge and skill for the ongoing learning of students. It assists in tracking the learning achievement according to class and age level of students. PAT score also illustrates the effectiveness of the teaching process, teaching methodology, and teaching techniques. PAT is a great assistant in judging the teaching-learning process through student’s achievement.