A Review of the Book All 4s and 5s: A Guide to Teaching and Leading Advanced Placement Programs by Andrew Sharos Reviewed by Erin Whalen Andrew Sharos is a leader in the field of AP programs and shares great insights in his 2018 book, All 4s and 5s. From practical advice to personal touches, all with evidence that backs him up, Sharos provides a how-to guide for teachers and administrators in growing an AP program both in enrollment and in test scores. SCORES System The book begins with an overview of the system Sharos developed – SCORES: Simplify homework Create a quiz culture Offer...