Restraints to reform: The congruence of teacher and student actions in a chemistry classroom

An interpretive methodology was employed to examine interrelations between teacher and student actions in a context of teaching and learning in an urban high school in Australia, a teacher of 20 years' experience, and a Grade 11 chemistry class. Data sources included teacher and student interviews, direct observation and videotapes of 4 weeks of lessons, and responses to a classroom environment survey. Three narratives were constructed for a typical lesson, the perspectives of the teacher, and the perspectives of a composite student. These narratives were used to describe what happened and communicate what we learned from the study. Initially, the teacher and students had difficulty describing their beliefs; however, as the study progressed they used language to describe their practices and construct mental models that fit with their practices and beliefs about learning. Teacher and student goals, beliefs about teacher and learner roles, and constructions of the context were coherent to such an extent that there was little impetus for change. These findings are discussed in terms of the difficulties of initiating and sustaining reform when the teacher and students are satisfied with what is happening and other sociocultural factors tend to support the status quo.     

Democratic science teaching: A role for the history of science

For John Dewey, democracy meant the opportunity and the ability to participate in the continuing conversation of the community. To participate effectively, education must free the intelligence to creatively reconstruct the community. Dewey traced logic back to its etymological roots in dialogue. The history of science is the history of a conversation of an international community. To participate in it effectively, students must free their intelligence. Logically, this is best done by creative and disciplined democratic classroom dialogue instead of the monologue common to so many schools. We recommend a dialogical model of science teaching.     

Seniority and experience of college teachers as related to evaluations they receive from students

A review of relevant research shows that many studies have found the academic rank, age, and extent of instructional experience of college teachers to be unrelated to their students' global evaluation of them. Yet many other studies have found these indicators of the teacher's seniority and instructional experience to be related to the overall evaluation of teachers, and with a consistent pattern. In this latter group of studies, the teacher's academic rank is positively associated with the overall evaluation of the teacher, whereas both the teacher's age and extent of instructional experience are inversely associated with overall evaluation. Although these associations are generally weak in strength, they are robust enough to hold under a variety of controls (including the size of course enrollment and the gender of the teacher). Also, at least for extent of instructional experience, the number and strength of the associations may be underestimated by considering the relationship in question as linear when in fact it may be curvilinear. Just as the teachers' age and extent of instructional experience in general have been either not related or inversely related to the global evaluation of teachers, so they have been for more specific evaluations of teachers. When academic rank has been found to be related to specific evaluations, the relationships tend to be positive for only certain specific rating dimensions while being inverse for others. This being so, it is puzzling that the associations that have been found between academic rank and global evaluations have generally been positive only. A possible explanation for this is offered and supportive evidence marshaled. Finally, several reasons why associations between any of the indicators of seniority or instructional experience and either specific or overall evaluations may be inverse, positive, or curvilinear in the first place are advanced. These hinge on such factors as the teacher's motivation and career circumstances, the pedagogical training and abilities of different cohorts of teachers, as well as the criteria and practices of colleges in their recruitment of teachers, the extent of an age (or generation) gap between students and teachers, and students' expectations and perceptions of teachers and pedagogical characteristics attributed to them. Those reasons having the greater support empirically as well as those that seem the most plausible are noted.