Guiding students to a deeper mastery of mathematics, science, or language arts skills is a daunting challenge, since no two students are completely alike and instruction must, therefore, be individualized. However, “the wheel need not be entirely reinvented” for each student: after a diagnostic assessment has been administered, it is possible to view the individual student as aligning with one or another of several basic groups (or demonstrating a need for targeted instruction in multiple areas at once)
I work primarily with language arts students, so this article is geared towards that subject. But a similar approach can likely be applied to most other subjects.