Nature of Science and Science Content Learning

Besides viewing knowledge about the nature of science (NOS) as important for its own value with respect to scientific literacy, an adequate understanding of NOS is expected to improve science content learning by fostering the ability to interrelate scientific concepts and, thus, coherently acquire scientific content knowledge. However, there is a lack of systematic investigations, which clarify the relations between NOS and science content learning. In this paper, we present the results of a study, conducted to investigate how NOS understanding relates to students’ acquisition of a proper understanding of the concept of energy. A total of 82 sixth and seventh grade students received an instructional unit on energy, with 41 of them receiving generic NOS instruction beforehand. This NOS instruction, however, did not result in students having higher scores on the NOS instrument. Thus, correlational analyses were performed to investigate how students’ NOS understanding prior to the energy unit related to their learning about science content. Results show that a more adequate understanding of NOS might relate to students’ perspective on the concept of energy and might support them in understanding the nature of energy as a theoretical concept. Students with higher NOS understanding, for example, seemed to be more capable of learning how to relate the different energy forms to each other and to justify why they can be subsumed under the term of energy. Further, we found that NOS understanding may also be related to students’ approach toward energy degradation—a concept that can be difficult for students to master—while it does not seem to have a substantive impact on students’ learning gain regarding energy forms, transformation, or conservation.     

Object permanence in four species of psittacine birds: An African Grey parrot (Psittacus erithacus), an Illiger mini macaw (Ara maracana), a parakeet (Melopsittacus undulatus), and a cockatiel (Nymphicus hollandicus)

Four psittacids—an African Grey parrot, an Illiger macaw, a cockatiel, and a parakeet—were tested on object-permanence tasks that are commonly used to assess levels of understanding in human infants during their first 2 years. These birds showed Stage 6 competence, demonstrating that object permanence is not limited to mammals. The results for these birds were comparable to those of an African Grey parrot that had been trained in interspecies communication prior to object-permanence testing. Our findings thus suggest that although language-like behavior provides a communication channel that facilitates testing, such language training is unlikely to affect the outcome of the tests.     

The “New Environmental Paradigm” in a Mexican Community

Abstract

A sample of 422 Mexicans from a medium-sized city responded to the New Environmental Paradigm-Human Exception Paradigm (NEP-HEP) scale, which assesses peoples' beliefs about human-environment relations. The NEP scale contains questions referring to the need for a “natural balance” and “limits to human impact on nature.” In contrast, implicit in the HEP scale is a view of humankind as different from and with control over nature. The responses of the interviewees revealed higher levels of adherence to the NEP than to the HEP. However, confirmatory factor analysis showed the covariances between pro-NEP and pro-HEP factors to be high and significant, indicating that the participants did not see the two paradigms as mutually exclusive, as do members of some industrialized societies. The results point to a more holistic view of human relations with the environment, in contrast to the dualistic vision of some western countries.     

PLANNING AN ELEARNING DEMENTIA CARE PROGRAM FOR HEALTHCARE TEAMS IN LONG-TERM CARE FACILITIES: THE LEARNERS’ PERSPECTIVES

This paper presents a needs analysis conducted to obtain information concerning online dementia care training of healthcare workers in long-term care (LTC) facilities. The resulting information was used to guide the development of an online dementia care training program designed to facilitate the acquisition of skills and knowledge necessary for healthcare teams to deliver better care to the residents with whom they work. Three focus groups were conducted at two sites across Canada. Data analysis revealed five major themes that will help program designers develop effective online learning programs. Recommendations for the development of an online dementia care program are proposed.     

Using Age,Cohort, and Period to Study Elderly Volunteerism

American volunteers, both informally and through organizations like the Corporation for National Service, make huge contributions to the well-being of millions of Americans and, via their unpaid or minimally-reimbursed work, to the American economy. Can America continue to count on maintaining or increasing volunteer contributions in the future? This question is especially important as the Baby Boomers replace the current generation of older Americans. This article provides faculty and students with information on elderly volunteering. It suggests and demonstrates using age-cohort-period analysis to understand different forces affecting volunteering by older Americans. A major benefit of age-cohort-period analysis is preventing faulty conclusions and, consequently, faulty policy decisions and waste of resources. Such analysis can also enhance current and future efforts to recruit and retain volunteers, particularly among the elderly.     

Using Personal Narratives for Curriculum Development about Substance Abuse and Older Adults

This article reports on a project to sensitize graduate social work students taking courses in substance abuse to the needs of older adults. Graduate social work students at a major urban school of social work in the Northeast were recruited and trained to interview older adults with a history of substance abuse problems regarding their life experiences. The authors developed educational vignettes based on the interviews and curriculum units based on these vignettes to be incorporated into the substance abuse curriculum. The challenges and rewards of engaging students in the process of developing educational vignettes based on older adults lived experiences are also discussed.