Mr. Tsai teaches a senior high school English class of 32 students in Beitou. Three weeks into a unit on persuasive speech writing, he collects a working draft of each student's opening statement. After reviewing the drafts that evening, he discovers that the majority of students are relying heavily on emotional appeals while neglecting logical reasoning. The next morning, before moving forward with the planned schedule, he revises his lesson to include a focused activity on integrating logos into persuasive openings and has students rework their drafts in small peer groups. The drafts are not scored or recorded in his gradebook. Which assessment practice does Mr. Tsai's use of the working drafts most accurately reflect？