A growing consensus of researchers and practitioners has found that systemic, ongoing teacher professional development is more effective than traditional one-time workshops.

As seen in the descriptions of the two PD models, one of the primary differences between the models is the order and emphasis on formative assessment and on the use of TI-Navigator for formative assessment in the delivery. This design was generated due to the difficulties identified with implementing formative assessment in classroom. To use
technology to implement formative assessment adds another level of complexity. Project FANC is trying to determine if there is a difference, based on student outcomes, between
these two designs. After two years of PD, to check if there is a difference in student outcomes, pre and post student data is being collected. In addition, data is continually being collected on how teachers are implementing each of the PD models and the effects of these models on student learning. For a more in-depth analysis of teacher implementation, case studies of ten teachers are being conducted to give a picture of various degrees of implementation of formative assessment strategies using the TINavigator. Full results on the project will become available starting in December 2010.