Three experiments investigated whether participants used Take The Best (TTB) Configural, a fast and frugal heuristic that processes configurations of cues when making inferences concerning which of two alternatives has a higher criterion value. Participants were presented with a compound cue that was nonlinearly separable from its elements. The…

The present study explored whether a similar phenomenon to stimulus over-selectivity occurred in rats, in the hope of establishing a non-human model for the autism. Rats were serially presented with two-15 seconds, two-element compound stimuli prior to the delivery of food, in an appetitive classical conditioning procedure. Each compound stimulus…

Human infants' discrimination of changes in internal and external elements of compound visual patterns was investigated in four experiments employing a familiarization-novelty paradigm in which visual reinforcing patterns were presented contingent upon rate of high-amplitude nonnutritive sucking. (Author/JH)

Rock Cycle is one of the units of a K-6 unified science curriculum program. The unit consists of four organizing sub-themes: (1) chemistry (introducing the topics of matter, elements, compounds, and chemical bonding); (2) characteristics (presenting hands-on activities with rocks and minerals); (3) minerals (emphasizing the aesthetic and economic…

The Grade 7 Science course of study was prepared in two parallel forms. A short form designed for students who had achieved a high measure of success in previous science courses; the long form for those who have not been able to maintain the pace. Both forms contain similar content. The Grade 7 guide is the first in a three-year sequence for…

Describes the use of carbide lights as an excellent mechanism for introducing or reviewing many basic chemistry concepts including elements and compounds, endothermic and exothermic reactions, physical and chemical changes, and balancing chemical equations. (JRH)

Results suggest that when the internal element of a compound stimulus is a highly preferred or salient stimulus, young infants will process information about its characteristics. (Author/DB)

Discusses some important aspects of bioinorganic chemistry, including interactions of organisms with metallic and nonmetallic elements and compounds. Indicates that many environmental problems are created by human exploitation of nature and technologies if studied from a bioinorganic chemical viewpoint. (CC)

A control group of 40 eighth graders completed a unit on elements and compounds. An experimental group of 42 completed concept maps on the same topic. Results of a one-tailed T test demonstrated the usefulness of concept maps as advance organizers. (KR)

Infants, aged one to four months, were tested for developmental shifts in their ability to discriminate internal pattern elements in compound geometric figures. Significant recovery was seen at all ages when any pattern element was altered. No developmental differences in responsiveness to changes in internal versus external figures were observed.…

Described is a spectrometer that can be used simultaneously by seven students to observe a single spectrum emitted by an element or compound in a single light tube against a calibrated screen. Included is a list of materials, directions for assembly, and procedures for use. (CW)

Over the last decade, comparisons of the effects of the traditional news media and the Internet have been made in relation to comprehension and remembering. This study aims at assessing the effects of single and compound presentational elements, and making predictions for the future. One of the two main aims of this study is to measure…

This document presents the lesson plans and tests used in the research study reported in Technical Report 173 (ED 070 658), together with descriptions of models and films developed for the teaching program. Thirty-one lessons are included, covering the topics of matter and energy; making interferences; particles; a model for matter; particles and…

This teaching unit is designed to help students in grades 4-8 explore the concept of measurement in the context of the earth's atmosphere. The units in this series have been developed to enhance and enrich mathematics, science, and technology education and to accommodate different teaching and learning styles. Each unit consists of a story line…

Describes introducing students to the chemical elements through the use of Tom Lehrer's recording of "The Elements" and through the use of the game "20 questions." By asking the teacher questions about an unknown element or compound, students are given opportunities to develop and practice analyzing, synthesizing, and…