Originating in Asia, lesson study is gradually spreading around the globe. As evident from the papers in this issue, we have much to learn as it is implemented in a variety of cultural contexts. In this article we reflect on the goals of lesson study, the organizational supports required to sustain the practice in various contexts, and the…

This article presents the authors' response to the comments of their article about extending ideas on improving teaching. The authors continue the conversation about improving teaching by focusing on two points that deserve further consideration: (1) the willingness or motivation of teachers to engage in the work of improving teaching; and (2) the…

For several historical and cultural reasons, the United States has long pursued a strategy of improving teaching by improving teachers. The rarely questioned logic underlying this choice says that by improving the right characteristics of teachers, they will teach more effectively. The authors expose the assumptions on which this logic is built,…

An alternative mathematics preparation program for K-8 teachers is described as an existence proof that steadily increasing effectiveness of STEM (science, technology, engineering, and mathematics) preparation is possible. The program is based on treating every lesson in each of five mathematics content and methods courses as objects of study.…

The videotape portion of the Third International Mathematics and Science Study (TIMSS), which captured "typical" mathematics instruction in Germany, the United States, and Japan, disclosed information about types of mathematics students encountered, teachers' role in developing concepts and lessons, and expectations for students. The…

An international study of mathematics and science education tells us more about what we need to know to improve math and science professional development. Students need regular opportunities to explore mathematical relationships to develop high levels of understanding in addition to developing skills. Teachers in high-achieving countries offer…

This book is an action plan for improving education in the U.S, focusing on the key role of teachers in this improvement. It offers a detailed comparison of the educational methods of Germany, Japan, and the United States. The analysis begins with an international study of mathematics teaching in the three countries that was conducted as part of…

The Third International Mathematics and Science Study Video Study of Teaching compared teacher development systems in the U.S., Japan, and Germany. Findings indicated that many American teachers believe they are changing the way they teach while they retain traditional practices. A research and development system was proposed for improving…