Describes the results of a teaching experiment conducted to investigate the effect of journal writing on achievement in and attitudes toward mathematics. The results of ANCOVA suggest that journal writing has a positive impact on middle school students' (n=104) conceptual understanding, procedural knowledge, and mathematical communication, but not…

Reports a case study in which a first-grade teacher's instructional decisions were affected by the pedagogical content knowledge concerning problem solving received during a four-week summer workshop on teacher's beliefs about teaching in conjunction with the teacher's beliefs that students can solve any problem they are given. (MDH)