Should Science be Taught in Early Childhood?     

Haim?EshachEmail author  Michael?N.?Fried 《Journal of Science Education and Technology》2005,14(3):315-336

This essay considers the question of why we should teach science to K-2. After initial consideration of two traditional reasons for studying science, six assertions supporting the idea that even small children should be exposed to science are given. These are, in order: (1) Children naturally enjoy observing and thinking about nature. (2) Exposing students to science develops positive attitudes towards science. (3) Early exposure to scientific phenomena leads to better understanding of the scientific concepts studied later in a formal way. (4) The use of scientifically informed language at an early age influences the eventual development of scientific concepts. (5) Children can understand scientific concepts and reason scientifically. (6) Science is an efficient means for developing scientific thinking. Concrete illustrations of some of the ideas discussed in this essay, particularly, how language and prior knowledge may influence the development of scientific concepts, are then provided. The essay concludes by emphasizing that there is a window of opportunity that educators should exploit by presenting science as part of the curriculum in both kindergarten and the first years of primary school.  相似文献   

The Use of Reflective Journals to Stimulate Critical Thinking in the Academic Internship     

Michael L. Arter  Lacey N. Wallace  Thomas L. Shaffer 《Journal of Criminal Justice Education》2016,27(1):140-156

Reflective journals have been widely accepted throughout various educational disciplines for many years as a means of enhancing experiential learning practices. Reflective journals allow for students to gain a better understanding of a given experience and explore the levels of critical thinking as they work through the understanding and learning processes. Critical thinking involves the logical progression from mere knowledge and understanding to the highest levels of synthesis and evaluation. The immediate study presents findings of the analyses of a series of sequential reflective journals presented over the course of a semester-long internship experience. Findings indicate that reflective journals are shown to facilitate progression through the levels of critical thinking as identified in Bloom’s taxonomy and promote a higher level of understanding and application of theoretical concepts to practical experiential learning.  相似文献   

Exploring Relationships Among Belief in Genetic Determinism,Genetics Knowledge,and Social Factors     

Niklas Gericke  Rebecca Carver  Jérémy Castéra  Neima Alice Menezes Evangelista  Claire Coiffard Marre  Charbel N. El-Hani 《Science & Education》2017,26(10):1223-1259

Genetic determinism can be described as the attribution of the formation of traits to genes, where genes are ascribed more causal power than what scientific consensus suggests. Belief in genetic determinism is an educational problem because it contradicts scientific knowledge, and is a societal problem because it has the potential to foster intolerant attitudes such as racism and prejudice against sexual orientation. In this article, we begin by investigating the very nature of belief in genetic determinism. Then, we investigate whether knowledge of genetics and genomics is associated with beliefs in genetic determinism. Finally, we explore the extent to which social factors such as gender, education, and religiosity are associated with genetic determinism. Methodologically, we gathered and analyzed data on beliefs in genetic determinism, knowledge of genetics and genomics, and social variables using the “Public Understanding and Attitudes towards Genetics and Genomics” (PUGGS) instrument. Our analyses of PUGGS responses from a sample of Brazilian university freshmen undergraduates indicated that (1) belief in genetic determinism was best characterized as a construct built up by two dimensions or belief systems: beliefs concerning social traits and beliefs concerning biological traits; (2) levels of belief in genetic determination of social traits were low, which contradicts prior work; (3) associations between knowledge of genetics and genomics and levels of belief in genetic determinism were low; and (4) social factors such as age and religiosity had stronger associations with beliefs in genetic determinism than knowledge. Although our study design precludes causal inferences, our results raise questions about whether enhancing genetic literacy will decrease or prevent beliefs in genetic determinism.  相似文献   

Transistors — From point contact to single electron     

D. N. Bose 《Resonance》1997,2(12):39-54

This article presents a historical account of the development of electronic devices along with an appreciation for the physics of semiconductors. Starting at the turn of the century with the work of J C Bose on Galena, the article leads us to recent low temperature experiments at IBM to demonstrate single electron transistors.  相似文献   

Adolescents earlier diagnosed as dyslexic show major IQ declines on the WISC-III     

P. T. Ackerman  N. L. Weir  C. A. Holloway  R. A. Dykman 《Reading and writing》1995,7(2):163-170

Adolescents (n=43) previously diagnosed as dyslexic/reading disabled had markedly lower IQ scores on the newly standardized Wechsler Intelligence Scale for Children (WISC-III) than on the earlier administered WISC-R. The declines for Verbal, Performance, and Full Scale IQs were 10, 12, and 11 points, respectively, which were twice as great as in a subset of the standardization sample given both versions of the WISC. The adolescents did not show a significant decline in standard scores from the Wide Range Achievement Test (Level I to Level II). However, only two subjects had current reading and spelling standard scores above the 25th percentile. The impact of lower WISC-III IQs on guidelines for classification of students as learning disabled is discussed.  相似文献   

Psychosocial correlates of child abuse potential in multiply disadvantaged adolescent mothers     

Budd KS  Heilman NE  Kane D 《Child abuse & neglect》2000,24(5):611-625

OBJECTIVE: This study had two aims: First to examine psychosocial correlates of child maltreatment risk, and second to assess the validity of the CAP Inventory (Milner, 1986) with multiply disadvantaged teenage mothers. METHOD: Participants were 75 adolescent mothers who were wards of the Illinois child protection system. Mothers (aged 14-18) and infants participated in home-based psychosocial assessment of personal and parenting functioning. Group comparisons examined differences for mothers with elevated versus normal versus invalid CAP scores due to faking good. RESULTS: Findings indicated that abuse risk groups differed on emotional distress, social support satisfaction, reading achievement, and years of education, but not on parenting beliefs or quality of child stimulation. Differences favored the normal over the elevated risk group in all significant comparisons, whereas mothers with elevated faking good differed from normals only in lower reading achievement. Multiple regression analysis highlighted emotional distress, support dissatisfaction, and low achievement as significant predictors of greater abuse risk. CONCLUSIONS: Despite sharing multiple disadvantages, adolescent wards are a heterogeneous group who show different levels of psychosocial functioning corresponding to levels of child maltreatment risk. The findings provide support for the concurrent validity and clinical applicability of the CAP Inventory with disadvantaged teenage mothers.  相似文献   

Book Review: Memory's War Against Forgetting. The Nature of Remembering: Essays in Honor of Robert G. Crowder. By Henry L. Roediger III, James S. Nairne, Ian Neath, and Aimee M. Surprenant (Eds.). American Psychological Association, Washington, DC, 2001, 396 pp. ISBN 1-55798-750-5     

Frank N. Dempster 《Educational Psychology Review》2002,14(4):413-423

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Assessing a Holistic Trait and Factor Approach to Career Development of College Students     

Patrick Johnson  Cassandra N. Nichols  Walter C. Buboltz  Brian Riedesel 《Journal of College Counseling》2002,5(1):4-14

To assess the impact of a holistic career and life planning course on college students, the authors asked 209 students in treatment and control groups to complete measures of career development. Results indicate that the course significantly increases vocational identity and career decision‐making self‐efficacy and decreases career indecision.  相似文献   

Reading Comprehension of Dutch Deaf Children     

Loes N. Wauters  Wim H. J. Van Bon  Agnes E. J. M. Tellings 《Reading and writing》2006,19(1):49-76

In this study, the reading comprehension of deaf children and adolescents in the Netherlands is examined along with their word identification. The reading comprehension of 464 deaf students and the word identification of 504 deaf students between 6 and 20 years of age was examined. The results show the reading comprehension scores of deaf children to be far below the scores of hearing children. On average, the deaf subjects scored at a level equivalent to a hearing child in the first grade. The word identification scores of the deaf children, however, were almost equivalent to the scores of hearing children. Although reading comprehension and word identification appear to be related, this relation does not completely explain the comprehension difficulties encountered by deaf children. Additional factors are required to explain deaf children’s difficulties with reading comprehension.  相似文献   

On the Number of Cycles in Randomly Selected Permutations     

Kavita Laghate  M.N. Deshpande 《Teaching Statistics》2003,25(3):93-95

In this article we derive the distribution, mean and variance of the number of cycles in a randomly selected permutation of the first n integers.  相似文献