This study reports on the process of developing a test to assess students' reading comprehension of scientific materials and on the statistical results of the verification study. A combination of classic test theory and item response theory approaches was used to analyze the assessment data from a verification study. Data analysis indicates the…

This study examined the differential impacts of an inquiry-based instruction on conceptual changes across levels of prior knowledge and reading ability. The instrument emphasized four simultaneously important components: conceptual knowledge, reading ability, attitude toward science, and learning environment. Although the learning patterns and…

This study has resulted in an elementary science methods course that facilitates the identification and description of the changes in students' conceptions and understanding of inquiry teaching, and the cultural influences, reflections, and situational factors influencing these changes. Written responses to open-ended questions, reflective…

The purpose of the study was to explore students' alternative conceptions and their associative thinking regarding internal transport in plants through administration of a refined diagnostic test. Questions of associative thinking and explanation were added to form a third tier of the previous two-tier test. The study found three terms related to…

This study is intended to develop an assessment instrument to investigate students' understandings about internal transport in plants and human circulatory system. A refined process of a two-tier diagnostic test was used to develop the instrument. Finally, three versions of the Internal Transport in Plants and the Human Circulatory System test…

This article provides a model for the professional development of elementary science teachers. The model focused on integrating different domains of knowledge into science teaching, including the knowledge of the science curriculum, especially scientific inquiry, teacher's knowledge, and students' knowledge. The two case studies in this article…