Lesson Study is a format to build and analyse classroom teaching where teachers and
researchers combine to design lessons, predict how the lessons might be expected to
develop, then carry out the lessons with a group of observers bringing multiple
perspectives on what actually happened during the lesson. This article considers how a
lesson, or group of lessons, observed as part of a lesson study may be placed in a
long-term framework of learning, focusing on the essential objective of improving the
long-term learning of every individual in classroom teaching