Casebook & video on the use of assessment as an ongoing activity in the classroom to help teachers reshape their instructional practice.

Contents: Preface. Introduction. Part I: Listening to Students.M. Vince in Collaboration With the Project Team, Case 1--"They Favor Each Other": Making Sense of Similarity. S. Bethell in Collaboration With D. Chazan, M. Dennis, B. Rosenthal, P. Lanier, and S. Wilcox, Case 2--Nurturing a Disposition for Inquiry. D. Cantlon in Collaboration With K. Suzuka, S. Wilcox, and P. Lanier, Case 3--Learning Children's Understandings of Algebra. Part II: Assessing the Potential of Tasks.M. Sahloff in Collaboration With the Project Team, Case 4--Students' Knowledge of Linear Relationships as Represented in Concept Maps. R. Zielinski in Collaboration With S. Wilcox and M. Dennis, Case 5--Geometric Constructions: The Contributions of Context. Part III: Capturing Students' Engagement With a Task.K. Rohrs in Collaboration With the Project Team, Case 6--Making Sense of Multiple Snapshots of Students' Work. P. Wagner in Collaboration With S. Wilcox, Case 7--"Dang! This Can't Be Right": Computation in Problem Situations.