Assessments associated with learning progressions are designed to provide diagnostic information about the level and nature of student understanding. Valid interpretations of such diagnoses are only possible when students consistently express the ideas associated with a single learning progression level. Latent class analysis was employed to…

We describe efforts toward the development of a hypothetical learning progression (HLP) for the growth of grade 7-14 students' models of the structure, behavior and properties of matter, as it relates to nanoscale science and engineering (NSE). This multi-dimensional HLP, based on empirical research and standards documents, describes how students…

Examines ways in which students collaborate to construct, use, and revise conceptual and strategic knowledge as they solve complex genetics problems. Concludes that students used three types of knowledge during model revision: knowledge of genetics, knowledge of the process of model revision, and knowledge of their own problem-solving strategies…

Presents data which leads to the construction of a response to the question of how different phases of the learning cycle influence physics students' content achievement and attitudes. Discusses the importance of the learning cycle in science instruction and the strength of using contrasting techniques (qualitative and quantitative) in research.…

This study explores the acquisition of proportionality by investigating the relationship between an understanding of proportionality and the development of cognitive structure in the domain of mechanics. (Author/MA)

High school chemistry students' (n=183) applied and theoretical knowledge of dissolution, diffusion, effusion, and states of matter were compared. Study found that students' formal reasoning ability and their preexisting knowledge are associated with their conceptions and use of particulate theory. A significant difference between applied and…

Uses a constructivist framework in conjunction with an interpretive methodology to investigate the effect of an intervention using the metaphor "learning is constructing" on students' metacognition and learning process. Believes that contextual factors are key determinants of students' propensity towards enhancing their metacognition and…

Examines the generalizability of selective-attention and academic-studying hypotheses to a modified science chart medium. Describes the questions designed to selectively focus students' attention on specific columns in a modified science chart, with the goal of improving student achievement on a test measuring learning of content contained in…

Reports on students' study and drawing of five electronic circuit diagrams. Concludes that the success of the students depended upon the amount of detail in the instructional diagrams. (RT)

Studies of the hierarchical attainment of conservation of physics concepts revealed significant differences with respect to age, sex, and grade level in a random sample of seventh and eighth grade students. Conservation of a quantity did not necessarily depend on the prior conservation of its constituent fundamental quantities. (MLH)

Investigates the ability of secondary school students to discriminate causal explanations from teleological and anthropomorphic explanations (TAE), and explains that a significant improvement in this ability can be achieved by appropriate teaching procedures in a relatively short time. (Author/GA)

Examines the relationship between high school students' perceptions of their science learning environments and their motivation, learning strategies, and achievement. Discusses the focus of shared perceptions and instruction and indicates that shared perceptions focused on understanding and independent thinking positively predicted students'…

Develops an instrument for measuring secondary students' cognitive conflict levels as they learn science. Indicates that cognitive conflict consists of four constructs: (1) recognition of an anomalous situation; (2) interest; (3) anxiety; and (4) cognitive reappraisal of the conflict situation. Discusses implications for instruction and…

Tests the hypothesis that an early adolescent brain growth plateau and spurt exists, and that this plateau and spurt influence students' ability to reason scientifically and to learn theoretical science concepts. Finds that measures of students' (n=210) prefrontal lobe activity correlated highly with scientific reasoning ability, and that these…