Transformations are a central organizing idea in geometry. They are included in most geometry curricula and are likely to appear with even greater emphasis in the future, given the central role they play in the "Common Core State Standards" for K-12 mathematics. One of the attractions of geometry is the ability to draw and construct the…

Every school district has policies and procedures for evaluating teachers that are shaped by state law and local collective bargaining agreements. As a result of No Child Left Behind and other accountability legislation many states modified requirements about the frequency of evaluation and now require the use of student achievement data as one…

While video has long been used to capture micro teaching episodes, illustrate classroom cases and practices, and to review teaching practices, recent developments in video annotation tools may help to extend and augment teacher self-reflection. Such tools make possible the documentation and support self-analysis using verifiable evidence as well…

Although self-regulated learning is considered as a characteristic of individual students, the question may be raised as to whether a community of learners with its emphasis on inquiry learning in teams of students provides an appropriate environment to acquire and develop active and dynamic self-regulation strategies. Two cases of communities of…