Testing Too Much?: A Principal's Guide to Cutting Back Testing and Reclaiming Instructional Time Autor Philip A. Streifer et al. 17 mai 2017 Paperback Preț: 169.52 lei 230.78 lei 43-57 zile -27%
Tools and Techniques for Effective Data-Driven Decision Making Autor Philip A. Streifer 22 iun 2004 Paperback Preț: 332.41 lei 445.57 lei 43-57 zile -25%