I'm a graduate-school professor who is very familiar with ways of helping students with the subjects of this test. For tutoring the ISEE, I often find gaps in knowledge of vocabulary and math that are significant.. I carefully diagnose any knowledge deficiencies in those areas. In doing so, I explain the key methods in a variety of simple ways until I find ones that are easy for a student to understand and apply. Then, with directed practice through drills, skill rapidly builds.