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Direct linkKeebaugh, Christof; Marshman, Emily; Singh, Chandralekha – Physical Review Physics Education Research, 2019
We discuss an investigation of student difficulties with the corrections to the energy spectrum of the hydrogen atom for the intermediate field Zeeman effect using degenerate perturbation theory (DPT). The investigation was carried out in advanced quantum mechanics courses by administering free-response and multiple-choice questions and conducting…
Descriptors: Energy, Scientific Concepts, Quantum Mechanics, Advanced Courses
Center for Research on Elementary and Middle Schools, Baltimore, MD. – 1987
If schools improved the academic performance of at-risk students beginning in the early years and continuing through the elementary grades, this improvement would have multiple positive effects on student dropout, delinquency, pregnancy, substance abuse, and other behaviors. Early improvement of poor academic performance could greatly alleviate…
Descriptors: Academic Achievement, Compensatory Education, Cooperative Learning, Early Intervention
