In this paper, we explore theoretical approaches to Japanese teachers' lesson designs involving the adaptation of mathematics textbooks for instructional change. In Japan, although most teachers use textbooks as the main resource for lesson planning, called "kyouzai kenkyuu," the ways in which they use textbooks can differ. In a…

The authors address instruction in morphological analysis, a vocabulary-learning approach that involves teaching students the meanings of affixes (prefixes and suffixes) and word roots and a strategy for using knowledge of these morphemic elements to infer the meanings of unfamiliar words. The authors discuss their development of a list of affixes…