Teaching is not a "gotcha" enterprise, yet many assessment approaches fall into that category. Join us for a provocative workshop in which we identify fundamental elements of formative assessment and contrast them with elements of summative judgment. Critical to middle school students' success, descriptive feedback from formative assessment will be emphasized as well. We will look at the validity of all three, busting a few myths along the way. We will emphasize clear and consistent evidence over time, practical and effective descriptive feedback, rubric design, and dozens of formative assessment techniques. Use these principles and watch the dramatic, positive change in students' performance within days!