Recent research focuses on systems - based change in teacher education and strategies and techniques deployed by environmental and sustainability educators to empower learners to become environmental citizens. (weec2017.eco-learning.org)
However, there is limited scientifically based research on what kind of program produces effective teachers; rather, the literature consists mostly of calls for change in teacher preparation programs. (sedl.org)
However, he fails to adjust for changes in teacher years of service, which have declined over time, and he doesn't make that entirely clear to readers. (kappanonline.org)