Preparing teachers to implement a new curriculum presents a significant but important challenge. While formal professional development programs can assist in this preparation, finding prescribed experiences that meet the needs of all teachers can be formidable and indeed may not always be the best option for promoting change in practice. Decisions…

Planning is an important phase of teaching, during which teachers make decisions about various aspects of instruction that ultimately shape students' opportunities to learn. Prior research on teacher planning, however, fails to adequately describe experienced teachers' planning decisions, and is unclear about the extent to which teachers use…