Districts are increasingly making personnel decisions based on teachers' impact on student-achievement gains and classroom observations. In some schools, however, a teacher's practices and their students' achievement may reflect not just individual but collaborative efforts. In other settings, teachers' instruction benefits less from the insights…

The present study built upon an earlier study by Ebner and Ehri (in press), which examined the Internet's potential as a learning tool for enhancing college students' vocabularies. The current research sought to extend that study by determining how to make online vocabulary learning more effective. An experiment was conducted to investigate a…