In the past three decades, researchers have noted the limitations of a problem-solving approach that overemphasizes algorithms and quantitation and neglects student misconceptions and an otherwise qualitative, conceptual understanding of chemical phenomena. Since then, studies and lessons designed to improve student understanding of chemistry has…

As a model for learning to teach, coteaching places two or more student teachers and cooperating teachers in a classroom. Effective coteaching requires coplanning, and this case study examines how six coteachers planned instruction for three environmental science classes. Using sociocultural theory, the study provides insight into the complexity…