Rather than merely dusting and polishing the old comfy stuff, these authors have spent 35 years trying to find out how people can learn to use new curriculums and ways of teaching. They have done some studies that would meet high standards of design, learned from peering at correlations, and stumbled on important things while teaching kids and…

In each issue of "JSD," Joellen Killion explores a recent research study to help practitioners understand the impact of particular professional learning practices on student outcomes. In this issue, she describes Z. Kisa and R. Correnti's 2015 longitudinal study of fidelity of implementation of principles of reform-aligned professional…

A randomized trial study, conducted over two school years in 18 high schools in Washington, finds that "An Inquiry Approach," a three-year, educative curriculum for high school science, has a positive impact on student achievement, teacher practice, and fidelity of implementation of the curriculum when the curriculum is paired with…