In a differentiated classroom, student assessment is an ongoing process. Its goal is to provide teachers with day-to-day data on their students' readiness for particular ideas, skills, interests, and learning profiles. According to Carol Ann Tomlinson (2002), differentiated assessment for individual students is crucial in helping both teachers and students progress towards academic success.
Teachers who use differentiated assessment do not perceive assessments as advancement tests that come at the end of each unit. Instead, they view assessments as a means along the way of understanding on how to modify the next day's instruction to fit the needs of every student. Carol Ann Tomlinson (1999) states, "Different assessments yield an emerging picture of who understands key ideas, who can perform at targeted levels, who can perform at certain levels of proficiency, and with what degree of interest" (p. 10). Assessment in this context always has more to do with proactively helping students grow than with finding their mistakes. For this reason, it is important that teachers choose varied means of assessment so that all students can fully display their skills and understanding at any particular point along their path of development.
Resources
Tomlinson, C.A. (1999). The differentiated classroom: Responding to the needs of all learners. Alexandria, VA: Association for Supervision and Curriculum Development.
Tomlinson, C.A. (2002). Different learners, different lessons [Electronic version]. Instructor, 112(2), 21, 24-26.





