creating assessments befor, during, and after while teaching a unit is very effective. before the unit being taugh, assessment of the students allow the teacher to know what the student already know and therefore aids the teacher to focus their lesson plan around what the student needs to know, during the teaching of the unit it is also important to assess the student to insure the level of comprehension and understanding of the subject being taught and lastly, assessment after the unit allows the teacher to know how well the student learned the infomration.