The relationship between expert teachers' classroom behavior and their subject matter knowledge is an area of research that has not been examined extensively. To begin that study, one topic, fraction knowledge, was explored in depth as it occurred in natural teaching settings. Fractions are one of the more difficult topics in elementary…

This investigation sought to determine the extent to which examiners' evaluations of writing performance were influenced by the learning disability label and to identify mediating variables which modify expectancy effects. Forty-four preservice regular education teachers were randomly assigned to one of two expectancy conditions (learning-disabled…

This study examined teachers' content knowledge about the nature of science and how this knowledge was expressed in their classrooms. Understandings about science influence not only explicit lessons about the nature of science, but also shape an implicit curriculum concerning scientific knowledge. Consideration was also given to ways in which…