lution—defined as descent with modification from a common ancestor as a result of natural selection acting on genetic variation—has traditionally been a challenge for most high school biology teachers and has become even more controversial and difficult recently. This is largely due to pressure against teaching evolution by many school boards, school administrators, and parents, and by a highly...

This study highlights trends and features of E-books and their versatility of this tool in elementary educational settings. There has been little quantitative research employed to examine teachers’ reasons for using or not using E-books. The purpose of this study was to examine elementary school mathematics and science teachers’ reasons for using or not using E-books and to assess how the use o...

Cyberbullying is a relatively new form of bullying, with both similarities and differences to traditional bullying. While earlier research has examined associations between school-contextual characteristics and traditional bullying, fewer studies have focused on the links to students' involvement in cyberbullying behavior. The aim of the present study is to assess whether school-contextual cond...

Most education reformers agree that effective teaching is defined by improving student learning, but they disagree on how to measure teacher effectiveness and how to use those measurements to improve teaching. Thus far, most of the policy debate on teacher effectiveness has focused on using test scores to implement merit pay or to fire teachers, but those strategies alone will not lift teacher ...

This paper reports on a study of the instructional situation in high school Geometry that Hsu (2010) called Geometric Calculation in Algebra (GCA). In particular, we conducted a virtual breaching experiment in order to examine the extent to which high school teachers recognized breaches of two norms that we conjectured to describe geometry teachers’ expectations of this work context. The result...