Assessments should be used to monitor reading comprehension and guide instruction by identifying student strengths and weaknesses. They should be authentic, valid, reliable, and confidential. Formative assessments are used for learning during instruction with low stakes grading, while summative assessments evaluate learning after a unit with high stakes grading. Accommodations on assessments must match a student's IEP or 504 plan and may include changes to delivery, timing, or setting.