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: 169.01 lei 221.94 lei 43-57 zile -24%
Tools and Techniques for Effective Data-Driven Decision Making Autor Philip A. Streifer 22 iun 2004 Paperback Preț: 331.42 lei 410.41 lei 43-57 zile -19%