There is much agreement among chemical education researchers that expertise in chemistry depends in part on the ability to coordinate understanding of phenomena on three levels: macroscopic (observable), sub-microscopic (atoms, molecules, and ions) and symbolic (chemical equations, graphs, etc.). We hypothesize this "level-coordination…

A variety of e-learning theories, models, and strategy have been developed to support educational settings. There are many factors for designing good instructional settings. This study set out to determine functionality of mobile devices, students who already have, and the student needs and views in relation to e-learning settings. The study…

We present an innovative course-based undergraduate research experience curriculum focused on the characterization of single point mutations in p53, a tumor suppressor gene that is mutated in more than 50% of human cancers. This course is required of all introductory biology students, so all biology majors engage in a research project as part of…

Encouraging nonprofessionals to participate in ecological research through citizen science programs is a recent innovation and an effective strategy for gathering ecological information across broad geographical areas. In this paper, we demonstrate how reporting field-based observations through eBird, a citizen-based birding and data-recording…

The purpose of this study was to describe the life experiences of science/engineering students who had been dissatisfied with their lives during graduate school in Taiwan. This study adopted a qualitative method of phenomenology utilizing in-depth interviews for data collection. Thirteen male and five female students with an average age of 24.85…

These proceedings contain the papers of the 14th International Conference on Cognition and Exploratory Learning in the Digital Age (CELDA 2017), 18-20 October 2017, which has been organized by the International Association for Development of the Information Society (IADIS) and endorsed by the Japanese Society for Information and Systems in…

A description of the commercially produced Harris Data Memory is presented. Operation instructions, memory capabilities, data storage, and applications are included. Usefulness of the instrument to instruction in all of the sciences is considered. (SA)

Presents a science activity designed to involve students in experimental procedures such as data collection and analysis by extracting peroxidase from plant sources. (YDS)

Describes a computer program designed to enable undergraduate students to apply computer skills for data acquisition and processing in experimental chemistry. An example is given that examines the absorption spectra of conjugated molecules such as carbocyanine dyes, and the free electron model is explained. (six references) (LRW)

The method used to record intellectual transaction in the Science Teaching Observation Schedule (STOS) is examined in the light of the theory of sampling methods. Concludes that STOS cannot give reliable quantitative data. Questions usefulness of continued analysis of STOS data. (Author/DS)

In response to criticisms of the reliability of the sampling methods associated with the Science Teaching Observation Schedule (STOS), the instrument's authors briefly review the rationale in developing the STOS and describe several studies validating the instrument. (DS)

The Space Exposed Experiment Developed for Students (SEEDS) Project offered science classes at the 5-12 and college levels the opportunity to conduct experiments involving tomato seeds that had been space-exposed over long periods of time. SEEDS kits were complete packages obtained from the National Aeronautics and Space Administration (NASA) for…

Describes a take-home experiment in which students measure the diffusion of acid through acid-filled capillary tubes immersed into base solutions and vice versa. Students represent and analyze the effects of ambient temperature, molecular weight, and concentrations of the solutions on that movement. (MDH)

Use of motion pictures and videotape recordings to analyze animal behavior is described. Indicates that accuracy/amount of data available is greatly increased and that simultaneous behaviors of different animals can be studied or individual behavior patterns increased/decreased, providing observers with temporal perceptions similar to the animals…

Describes an interface designed to meet the requirements of an instrumentation teaching laboratory, particularly to develop computer-controlled digital circuitry while exploiting electrical drive properties of common transistor-transistor logic (TTL) devices, minimizing cost/number of components. Discusses decoding for Pet, switches, lights, and…