Mathematical Argumentation skills have historically been overlooked in assessment, but the inclusion of Mathematical Argumentation in the Common Core State Standards (CCSS) as one of the Standards of Mathematical Practice challenges assessment developers to assess this mathematical practice. Explanation and justification of one's own thinking to a…

This article reviews recent research on children's knowledge and acquisition of derivational morphology across studies of listening, speaking, reading, and spelling. The paper concludes that this dimension of language organization deserves more attention than it now receives in language instruction. (Author/JDD)

This book traces the historical development of current attitudes toward language usage and, by examples and quotations, shows the steps in attitude change, including the creation and abandonment of rules. The book is based on the premise that standard English usage is open to different interpretations, and supports this premise with references to…

The techniques used to collect data on the dominant speech patterns and verbal expressions of elementary school children are described as a means of systematizing oral language instruction. Specific recurring errors discovered in children's communication are discussed: the failure to focus on a major point, to support ideas, and to clarify…