This unit contains 15 lessons on Alaskan plants for fourth graders. It describes materials, supplementary materials, use of process skill terminology, unit objectives, vocabulary, background information about five kingdoms of living things, and a webbing activity. Included are: (1) "Roots in Action"; (2) "Chlorophyll"; (3)…

This unit includes 15 lessons on Alaskan plants and trees for third graders. It describes materials, supplementary materials including books and films, use of process skill terminology, unit objectives, vocabulary, background information (including the information source), field trip organization, succession, and major plants. Included are: (1)…

Presented in this document are essays related to a research project focusing on conceptual obstacles which confine and inhibit scientific understanding (conceptual barriers). These include a short summary of research activities; research methodology; outline of a theory and summary of supporting evidence related to conceptual barriers encountered…

How we go about labeling and conceptualizing the social problem of burnout reveals much about the underlying values and assumptions of our culture. An examination of the history of social science and related, applied fields during the last 150 years, reveals two different paradigms, i.e., ways of viewing the world based on untested assumptions and…

This is the teacher's guide for Ciencias 1, the first in a series of science books designed for Portuguese-speaking students in elementary schools. The guide contains materials corresponding to the student's book. Included are five sections comprised of 43 lessons. The teacher's guide also contains lesson objectives, suggestions for lesson…

Students (N=49) enrolled in a physics course for elementary teachers were evaluated for their abilities to use: (1) combinatorial logic; (2) separation and control of variables; (3) proportional reasoning; and (4) reciprocal implications. Performance of four Piagetian tasks during interviews was treated as a measure of the degree to which students…

Because many incoming geoscience students did not acknowledge their previous personal encounters with the earth's geological processes or products, we developed the Geological Sense of Place (GSP) template as a convenient way to assess students' earth science backgrounds through short answer, mini-essay, and induced associative responses. The GSP…

This article describes a challenge given to students completing a senior high school biology course. The scenario described encourages students to apply their knowledge, understanding, and appreciation of scientific and commercial principles. It permits them the opportunity to develop skills in research, collaboration, cooperation, delegation, and…

Fifty-five citations pertaining to the scientific and mathematic development of ancient Mexicans, particularly the Mayas, are given in this select bibliography. The introduction and descriptions of resource libraries in 8 States are in Spanish. (NQ)

The major purpose of this study was to determine whether certain types of instructional strategies (factor-label method, use of analogies, use of diagrams, and proportionality) were superior to others in teaching problem solving in four topics (mole concept, gas laws, stoichiometry, and molarity). Also of major interest was whether particular…

This paper offers a variety of approaches to teaching the concept of time. Many social studies courses traditionally emphasize time as measured by clocks and as useful for recording when events occur in relation to each other. In addition to this approach, the author suggests that students should reflect upon four other modes of time. These are…

This publication was developed as a portion of a two-semester sequence commencing at either the sixth or seventh term of the undergraduate program in electrical engineering at the University of Pittsburgh. The materials of the two courses, produced by a National Science Foundation grant, are concerned with power conversion systems comprising power…

This teacher's guide is designed to meet several objectives in the area of junior high science. The three versions within this volume are based on the idea that the same science content can be oriented towards the attainment of several different kinds of objectives. Each version is devoted to a different area of emphasis. The blue version…

The purpose of this study was to develop and evaluate curricular material concepts for junior high school science teachers. The vehicle chosen was the evolutionary development of physiological concepts relating to blood circulation and kidney function in man from the prehistoric period to the present. This material was produced as a teacher…

This sourcebook provides science investigations for junior high students. These investigation are coordinated with the seven integrating conceptual schemes formulated in 1964 under the auspices of National Science Teachers Association. The investigations were developed, classroom tested, and contributed by classroom teachers. (RS)