What can be inferred about Ms. Smith's unit exam on transformations if all but one student gets a 100 percent?

The correct response highlights a potential area for improvement in assessment design. Specifically, the choice about including open-ended questions suggests that while many students performed exceptionally well on the unit exam, this format may not fully capture their understanding or ability to apply the concepts of transformations. Open-ended questions can encourage deeper thinking and allow students to demonstrate their reasoning and problem-solving skills more comprehensively than multiple-choice questions alone.

If the majority of students scored perfectly, it raises the question of whether the exam effectively differentiated between varying levels of understanding. Including open-ended questions would enable Ms. Smith to assess not only the students' rote knowledge but also their ability to articulate and apply transformation concepts in a variety of contexts. This approach could provide a more nuanced picture of student comprehension and mastery of the subject matter.