Because textbooks have the potential to be powerful catalysts for improving science teaching and learning, having reliable methods for analyzing important textbook features, such as their coherence, is essential. This study reports on the development of a method in which trained reviewers, following a set of guidelines defining the ideas to be learned and connections among those ideas drawn from relevant maps published by the American Association for the Advancement of Science in the Atlas of Science Literacy (2001), were able to analyze the degree to which four widely used high school biology textbooks provided students and teachers with a coherent account of the important topic of matter and energy transformations in living systems. The study method was found to produce consistent results across reviewers and textbooks and can serve those who evaluate, design, and use science curriculum materials. This work represents an important first step in meeting the need for methods to measure, characterize, and, ultimately, to improve textbook coherence. ß
Assessment influences every level of the education system and is one of the most crucial catalysts for reform in science curriculum and instruction. Teachers, administrators, and others who choose, assemble, or develop assessments face the difficulty of judging whether tasks are truly aligned with national or state standards and whether they are effective in revealing what students actually know. Project 2061 of the American Association for the Advancement of Science has developed and field-tested a procedure for analyzing curriculum materials, including their assessments, in terms of how well they are likely to contribute to the attainment of benchmarks and standards. With respect to assessment in curriculum materials, this procedure evaluates whether this assessment has the potential to reveal whether students have attained specific ideas in benchmarks and standards and whether information gained from students' responses can be used to inform subsequent instruction. Using this procedure, Project 2061 had produced a database of analytical reports on nine widely used science middle school curriculum materials. The analysis of assessments included in these materials shows that whereas currently available materials devote significant sections in their instruction to ideas included in national standards documents, students are typically not assessed on these ideas. The analysis results described in the report point to strengths and limitations of these widely used assessments and identify a range of good and poor assessment tasks that can shed light on important characteristics of good assessment. ß 2002 John Wiley & Sons, Inc. J Res Sci Teach 39: 889-910, 2002 Assessment of student performance exerts extraordinary influence on the lives of children and their families and on every level of the education system. If used properly, good assessment can be a powerful catalyst for improving both curriculum and instruction. Poor assessment practices, on the other hand, can impoverish our expectations for learning science, focusing teachers' and students' efforts on less important concepts and skills or on test taking as an end in itself.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.