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: 176.38 lei 238.58 lei 43-57 zile -26%
Tools and Techniques for Effective Data-Driven Decision Making Autor Philip A. Streifer 22 iun 2004 Paperback Preț: 346.23 lei 460.47 lei 43-57 zile -25%