Authentic, "messy data" contain variability that comes from many sources, such as natural variation in nature, chance occurrences during research, and human error. It is this messiness that both deters potential users of authentic data and gives data the power to create unique learning opportunities that reveal the nature of science…

Background: Historically, significant advances in scientific understanding have followed advances in measurement and observation. As the resolving power of an instrument increased, so have gains in the understanding of the phenomena being observed. Modern interactive systems are potentially the new "microscopes" when they are…

Noting that understanding how science students respond to anomalous data is essential to understanding knowledge acquisition in science classrooms, this paper presents a detailed analysis of the ways in which scientists and science students respond to anomalous data. The paper postulates seven distinct forms of response to anomalous data: ignoring…

Describes research in two different domains: novices learning programing, and school pupils interpreting Cartesian graphs. Findings in each domain are discussed, but the main focus is an examination of the extent to which general principles and issues apply across both domains. Research implications for instructional design are discussed.…

Gender differences were examined on three computer-administered spatial processing tasks: (1) the Intercept task, requiring processing dynamic or moving figures; (2) the mental rotation test, employing rotated asymmetric polygons; and (3) the integrating details test, in which subjects performed a complex visual synthesis. Participants were about…

Theories of learning and instruction usually are grounded in psychological and epistemological assumptions. However, these theories ignore the child in relation to his or her cultural and institutional context and ignore the schoolteacher from the social context that regulates the process of transmission and acquisition of knowledge and skills.…

Exposes erroneous ideas related to the use of databases for teaching thinking skills. Reviews the importance of databases for teaching social studies; describes the teacher's role in helping students use databases; discusses effective teaching strategies; and outlines what is needed to teach thinking skills. (Author/LS)