In this study, it was aimed to examine the science preservice teachers' conceptual structures about the metabolic events taking place and the forms of energy in a cell. In the study, the descriptive model was used. In the study carried out during the spring semester of the 2017-2018 academic year participated a total of 123 third and fourth year…

This study examined conceptual change of Thai middle school students after learning photosynthesis with analogy and model. The analogy mapped key features from the analog (cooking food) to the target concept (photosynthesis). Modeling photosynthesis activity provided the opportunity for students to understand how plants use sugar to synthesize…

The assertion that there is a social component to children's construction of knowledge about natural phenomena is supported by evidence from an examination of children's classification schemes for plants. An ethnographic study was conducted with nine sixth grade children in central Texas. The children classified plants in the outdoors, in a…

This paper describes open-ended experimentation with the fungus Pilobolus for laboratory work by high school students. The fungus structure and reproduction is described and sources of the fungus are suggested. Four areas for investigation are suggested: the effect of a diffuse light source, the effect of a point light source, the effect of light…

The Plant Information Center (PIC) is a project funded under the Institute of Museum and Library Studies that aims to provide global access to both primary and secondary botanical resources via the World Wide Web. Central to the project is the development and employment of a series of applications that facilitate resource discovery, interactive…

This paper examines two fields that contribute to research on digital libraries--information systems and orality-literary studies--and applies them to a particular digital library domain, botanical taxonomic work. Topics discussed include: (1) an introduction to HOSS (i.e., a computationally-oriented hypermedia system) architecture, including the…

Provided in this document are descriptions of reforestation projects and techniques presented by Peace Corps volunteers from Chad, Ivory Coast, Upper Volta, and Niger. The purpose of the document is to aid individuals in trying to find solutions to the problems facing forestry in the Sahel. These projects include: (1) reforestation of Ronier palm…

Provides an outline of a presentation which focused on teaching science environmentally and extending the teaching outdoors. Includes a discussion of the sumac as a typical topic to illustrate the ideas and strategies cited. (BC)

The purpose of this study was to investigate and describe selected instructional strategies (traditional and constructivist) and grouping practices (homogeneous and heterogeneous) on conceptual understanding and critical thinking skills in biology classrooms in three high schools. The context of the study was the teaching and learning of plant…

This paper discusses how a university designed, developed, and delivered a feature-rich Web-based course for undergraduate plant biology. In the design stage, the focus centered around curriculum design, content development, and media acquisition. Instructors, including faculty and graduate assistants of plant biology, served as content experts,…

Students of advanced life science courses at Beverly Hills High School, California, are able to approximate a wide variety of life process experiments through use of computer simulations. Students are taught to use the BASIC language and to execute programs on the Hewlett-Packard 2000 Access series. Computer programs are used to enhance…

With rapid developments in information technology in society being mirrored in the use of new learning technologies in universities, research into the quality of technologically-supported learning is essential. To date, research into new learning technologies has provided us with valuable knowledge that includes the theories behind their design,…

This study provides detailed descriptions, analyses, and interpretations of student interactions and participation that occurred in computer-mediated interactive writing activities in two different college classroom network situations. A freshman composition class focused on the teaching of writing through assigned exercises and incorporated…

To enhance both teaching and learning in an advanced undergraduate elective course on the interrelationships of plants and human affairs, the computer was used for information retrieval, multiple choice course review, and the running of three simulation models--plant related systems (e.g., the rise in world coffee prices after the 1975 freeze in…