Changing ideas about the periodic table of elements and students' alternative concepts of isotopes and allotropes     

Hans‐Jürgen Schmidt  Tim Baumgrtner  Holger Eybe 《科学教学研究杂志》2003,40(3):257-277

The Periodic Table of Elements (PTE) is one of the organizing principles in chemistry. Originally it was a list of elements (as substances). Later, the PTE developed into a list of atoms of the elements. However, isotopes and allotropes are difficult to integrate into the PTE. Therefore, difficulties in understanding these terms can be expected. The investigation set off to study secondary school students' concepts of isotopes and allotropes and how the concepts are linked to the PTE. Three specific research questions were addressed: (a) How do secondary school students describe the relationship between fundamental particles constituting an atom? (b) How do they conceive isotopes? and (c) What are students' concepts of graphite and diamond? Multiple choice items were given to 3074 senior high school students. In addition, six interviews were conducted with senior high school students. The data analysis revealed students' alternative concepts, which distinguished between standard atoms and atoms of isotopes. Standard atoms contain neutrons and protons in equal numbers and are more stable. The atomic masses are expressed as integers. Moreover, students considered graphite and diamond as isotopes. The analysis of the results shows that students actively tried to make sense of what they had experienced. © 2003 Wiley Periodicals, Inc. J Res Sci Teach 40: 257–277, 2003  相似文献   

The Role of Teachers and Schooling Experiences in Learners’ Adult Life Quality: A Senegalese Case Study     

Holger Daun  Abdoulaye Sane 《Interchange》2008,39(3):279-301

School attended, Qur’anic education attendance, fathers’ occupation, and some aspects of teachers’ classroom actions make a difference for the adult life of the former learners. This paper presents findings from a longitudinal study of the career and life situations of Senegalese individuals who were of school age in the beginning of the 1980s. Data was collected on teacher ratings and predictions of school success as well as absenteeism during the academic year 1980/1981. In a follow up study in 1999/2000 the individuals were 25-32 years old and they were interviewed and tested on a simple life-skills test.  相似文献   

Erratum to: (N)Olympia in Germany? An analysis of the referendum against Munich 2022     

Thomas Könecke  Mathias Schubert  Holger Preuß 《Sportwissenschaft》2016,46(1):25-25

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Privatisation,Decentralisation And Governance In Education In The Czech Republic,England, France,Germany And Sweden     

Holger?DaunEmail author 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》2004,50(3-4):325-346

The Czech Republic, England, France, Germany and Sweden differ culturally and economically, but they commonly exhibit general trends of decentralisation in the control of educational processes and outcomes. The present contribution looks at these five European countries as the venue for case studies in educational restructuring as well as evaluation, assessment and reporting. It shows that such trends have been most radical in the Czech Republic and Sweden, while England has centralised curriculum policy and France has devolved some decision-making to bodies at lower levels, but as representatives of the central state.  相似文献   

Streamlining high‐school homework     

Holger W. Anderson 《Peabody Journal of Education》2013,88(5):315-323

Western Youth Meets Eastern Culture. By Frances G. Sweeney, Emily Fanning Barry, and Alice E. Schoelkopf. Columbia University, 1932. Pp. xvi + 335.

Journalistic Vocations. By Charles Elkins Rogers. New York: D. Appleton and Company, 1931. Pp. ix + 354.

Educational Views of Benjamin Franklin. By Thomas Woody. New York: McGraw‐Hill Book Co. 1931. Pp. ix + 270.

The Austrian Educational Institutes. By Beryl Parker. Vienna and Leipzig : Austrian Federal Publisher for Education, Science, and Art, 1931. Pp. 12 + 184.

Secondary Education. By Herbert G. Lull. New York: W. W. Norton and Company, Inc., 1932. Pp. xxii + 356.

Case Studies of Normal Adolescent Girls. By Elsie M. Smithies. New York: D. Appleton and Company, 1933. Pp. ix + 284.

The Road to Health. Books I and II. By Bundesen &; Manry. New York: Laidlaw Brothers, 1932. Pp. 96 + 127.

Our Neighbors Near and Far. By Carpenter. Book One. American Book Company.

English Practice Books. Books 3, 4, and 6. By Fennek and Madden. The American Book Company.

The Art of Educational Research. By Harold H. Abelson. New York: World Book Company, 1933. Pp. xi + 332.

Educational Psychology. By Harry L. HoixingsworTh. New York: D. Appleton and Company, 1933. Pp. xvi + 540.

Arithmetic Workbook, Grade I. By Clifford B. Upton. New York: American Book Company, 1933. Pp. 128.

Clothing. By Friend and Shultz. Pp. x + 300. Living in Our Homes. By Friend and Shultz. Pp. xviii + 274. New York : D. Appleton and Co., 1933.

Lina Sarger. By Marque Maier. Boston: The Christopher Publishing House, 1932. Pp. 249.

Study Guide in Secondary Education. By Edgar M. Draper and Alexander G. Roberts. New York : The Century Co., 1933. Pp. xi + 151.

Survey of Higher Education in Maine. By the University of Maine. Pp. x + 430.

Archery Simplified. By Phillip Rounsevelle. New York: A. S. Barnes and Company, 1931. Pp. vii + 120.

The Dawn of Literature. By Cam, Holliday. New York : Thomas Y. Crowell Company. Pp. 377.

Problem Solving in Arithmetic. By Leon Nelson Neulen. New York City: Bureau of Publications, Teachers College, Columbia University, 1931. Pp. v + 87.

A Text‐Book of Physics. Fourth Edition. By Louis Bevier Spinney. New York: The Macmillan Company, 1931. Pp. v + 679.

The Junior College. By Walter C. Eells. Boston : Houghton Mifflin Company, 1931. Pp. xxviii + 833.

Realism in American Education. By William Setchel Learned. Cambridge : Harvard University Press, 1932. Pp. 2 + 70.

Paraguay. By Arthur Elwood Elliott. New York City : Teachers College, Columbia University, 1931. Pp. v + 210.

Modern Business Geography. By Ellsworth Huntington and Sumner W, Cushing. New York : World Book Company. Pp. xii + 352.

The World We Live In. By Gertrude Hartman. Macmillan.

The Measurement of Certain Aspects of Personality Among Hard of Hearing Adults. By Henry Hunter Welles, III. New York : Columbia University, 1932. Pp. viii + 77.

The Educational and Occupational Preferences of College Seniors. By Marlin Ray Chauncey. New York: Columbia University, 1932. Pp. 72.

Making the Most of Books. By Leal A. Headley. Illinois: American Library Association, 1932. Pp. 342.

Relations of Religious Training and Life Patterns to the Adult Religious Life. By Luther Ellis Woodward. Teachers College, Columbia University, 1932. Pp. v + 75.  相似文献   

Praxis und Verhältnis interner und externer Evaluation im Schulsystem im internationalen Vergleich     

Dr. Holger Gärtner 《Zeitschrift für Erziehungswissenschaft》2013,16(4):693-712

The overview article deals with the interaction of internal and external evaluation within the current paradigm of school governance. The actual practice of both approaches and the current state of research about the effects on school development is described. Both evaluation approaches are less focused on aspects of school output such as student performance, and more on school processes such as school management or the quality of teaching. External evaluation in the form of school inspection mainly fulfills the function of accountability and the identification of weak schools. Internal evaluation is probably a better way to achieve school development. However, the necessary competence to use internal evaluation as a systematic process of quality management for which each individual school takes responsibility is currently underdeveloped. Considerations about the future relationship between internal and external evaluation focus on using external evaluation as a kind of “meta-evaluation”. But before external evaluation can build on results of internal evaluation in this way, a broad capacity building in schools and a different understanding of the role of inspectors are necessary.  相似文献   

Sprachförderkompetenz pädagogischer Fachkräfte     

Dr. Holger Hopp  Dr. Dieter Thoma  Prof. Dr. Rosemarie Tracy 《Zeitschrift für Erziehungswissenschaft》2010,13(4):609-629

This paper introduces the basics of a (psycho)linguistically-oriented model of language-training competences of educators in pre-school and elementary education. It specifies competence criteria for language intervention based on psycholinguistic research. Ultimately, these criteria will be useful for grounding the additional training of educators and for certifying competences in early language intervention.  相似文献   

National Forces,Globalization and Educational Restructuring: some European response patterns     

Holger Daun 《Compare》1997,27(1):19-41

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Education in Europe and Muslim Demands for Competitive and Moral Education     

Daun  Holger  Arjmand  Reza 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》2005,51(5-6):403-426

International Review of Education - While European education systems fundamentally rest on a rather monolithic world-view, some of them are explicitly oriented towards Christianity and others are...  相似文献   

Specific managerial human capital,firm age,and venture capital financing of biopharmaceutical ventures: A contingency approach     

Judith Behrens  Holger Patzelt  Lars Schweizer  Robin Bürger 《The Journal of High Technology Management Research》2012,23(2):112-121

In this article we investigate how specific human capital in biopharmaceutical ventures' management teams impacts the financial commitment of venture capital investors. Further, we explore how this impact changes with the venture's age. We draw on data from 138 VC financing rounds in the US and Europe to show that biopharmaceutical ventures with greater portions of specific managerial human capital in the fields of management, law, medicine, and biosciences acquire more money in venture capital financing rounds, but this effect is contingent on the age of the venture. We discuss the implications of these findings for the literature on VC financing of high technology ventures.  相似文献