Which assessment best matches the purpose of showing a parent the progress a student has made during a second conference?

A portfolio is an organized collection of a student’s work that reflects their learning progress over time. It typically includes various types of assessments, such as projects, essays, and tests, along with reflections and self-assessments. By selecting a portfolio to demonstrate progress during a parent conference, a teacher can provide tangible evidence of the student’s growth, strengths, and areas in which they may still need improvement. This holistic view allows parents to understand not only what their child has learned but also how they have developed various skills over time.

The other options don't serve this purpose as effectively. A diagnostic pretest is typically used to gauge a student’s prior knowledge before instruction begins, rather than to show growth after a period of learning. A scoring guide provides criteria for evaluating performance but does not showcase completed work. Similarly, a rubric outlines expectations for an assignment but does not present a comprehensive view of a student's overall progress. The portfolio is therefore the most suitable choice for demonstrating a student’s progress in a parent conference setting.