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1.
WANG Yuan-jun CAO Yuan 《浙江大学学报(A卷英文版)》2006,7(9):1572-1577
INTRODUCTION In Computer Aided Design, fairness is one of the basic requirements for designing curves. If the curves are not fair, the design will be unsatisfactory and the producing process will be discommodious. In practice, there are all kinds of errors such as modelling error and measuring error. It means that the information on the data points may not be accurate. In order to obtain fair curves by interpolating these data points, we should fair the data points first. This is the so… 相似文献
2.
The Chronicle of Higher Education recently reported that the number of doctoral degrees awarded in the U.S. rose 3.4 percent in 2004, largely because of an
increase in foreign students [Smallwood (2005). Doctoral degrees rose 3.4% in 2004, survey finds. The Chronicle of Higher
Education, December 9, 2005]. Currently, 20.9 percent [National Science Board (2003). The science and engineering workforce
realizing America’s potential. NSB, vol. 3, National Science Foundation] of all science and engineering faculty positions
at U.S. universities are held by foreign-born scientists (with even larger percentages in computer science and engineering)—and
we can expect higher numbers of foreign-born faculty at U.S. universities in the future. In this paper, we use 2001 Survey of Doctorate Recipients (SDR) data from the National Science Foundation to compare productivity levels, work satisfaction levels and career trajectories
of foreign-born scientists and U.S.-born scientists. The results indicate that foreign-born academic scientists and engineers
are more productive than their U.S.-born peers in all areas. Yet, average salaries and work satisfaction levels for foreign-born
scientists are lower than for U.S.-born scientists.
The use of NSF data does not imply NSF endorsement of the research methods or conclusions contained in this report. 相似文献
3.
Mary Margaret Capraro Robert M. Capraro Z. Ebrar Yetkiner Alma F. Rangel-Chavez Chance W. Lewis 《The Urban Review》2010,42(3):193-209
Hispanic students, born both inside and outside the United States, comprise over 80% of the US English language learner population.
The difference in mathematics achievement among Hispanic students and other populations has been well documented. As a result,
it is important to understand the effects of using standards-based mathematics curriculum with high school Hispanic students.
Mathematics achievement scores from the Colorado Student Assessment Program and Measurement of Academic Progress for Hispanic
9th and 10th grade students (n = 1,318) who used the Core-Plus Mathematics Program were compared to the progress of other student demographics (n = 2,003) who used the same curriculum. In following the recommendations of the National Research Council (On evaluation curricular
effectiveness: judging the effectiveness of K-12 mathematics evaluations. National Academies Press, Washington, DC 2005), a meta-analysis (Glass in Educ Res 5:3–8, 1976) of Hispanic students using National Science Foundation Funded (NSFF) curricula was conducted to contextualize this study’s
findings within the findings of previous studies. The results of this study indicated that Hispanic students have shown modest
gains; however, their relative position compared to other ethnic groups is unremarkable. The meta-analysis Cohen’s d results ranged from +.673 (SE = .131) to −.670 (SE = .045) with slightly positive effects for Hispanic students using an
NSFF curriculum when compared to those not using an NSFF curriculum (.043, SE = .012). 相似文献
4.
This paper focuses on document clustering by clustering algorithm based on a DEnsityTree （CABDET） to improve the accuracy of clustering. The CABDET method constructs a density-based treestructure for every potential cluster by dynamically adjusting the radius of neighborhood according to local density. It avoids density-based spatial clustering of applications with noise （DBSCAN） ＇s global density parameters and reduces input parameters to one. The results of experiment on real document show that CABDET achieves better accuracy of clustering than DBSCAN method. The CABDET algorithm obtains the max F-measure value 0.347 with the root node＇s radius of neighborhood 0.80, which is higher than 0.332 of DBSCAN with the radius of neighborhood 0.65 and the minimum number of objects 6. 相似文献
5.
6.
1 IntroductionItiswellknownthatfluidflowsinsealsandbear ingsturnfromlaminarregimeintoturbulentonewhentheirReynoldsnumberbecomeshigherthanacriticalvalue .Theearliesttheoriesofhydrodynamiclubricationhavebeenbasedonthepresumptionofex istenceoflaminarflowregime .Inturbulentregime ,however ,thecharacteristicsofsealsandbearingsdif ferfromthepredictionsbytheoriessobased .Speciallubricationtheoriesbasedoncontemporaryturbulencemodelssincethelaterhalfof 190 0’swerethereforedevelopedtotaketheeffectsof… 相似文献
7.
Cluster parallel rendering based on encoded mesh 总被引：2，自引：0，他引：2
QIN Ai-hong XIONG Hua PENG Hao-yu LIU Zhen SHI Jiao-ying 《浙江大学学报(A卷英文版)》2006,7(7):1124-1133
INTRODUCTION Three dimensional (3D) meshes are widely used to represent 3D objects. With the rapid advances in digital acquisition technology, meshes with millions of vertices are becoming increasingly common. Be- cause of memory constraints and lack of graphics power, visualizations of this magnitude are difficult or impossible to perform even on the most powerful workstations. Therefore, the need for parallel im- plementation is clear. Most previous work in high performance rendering h… 相似文献
8.
LU Bao - qi 《上海大学学报(英文版)》2005,9(4):365-368
Infrared （IR） absorption spectra and X-ray powder diffraction （XRD） patterrns of sexpenfine cat＇s eye from Sichuan Province have been investigated, and infrared absorption bands of the serpentine have been assigned in this paper. The results indicate that the bands near 3 600 - 3 700 cm^-1 belong to the stretching absorption band VOH, the bands in 948 - 1 100 cm^-1 axe assigned to the stretching vibraling band Usvo, and the bands at 600 570 and 440 cm^-1 respectively belong to the bending vibration band VOH, δMg-O and δSi-O. The serpentine cat＇ s eye includes two types： chrysotile and antigorite. Chrysotile has a sharp and intensive band at 3 688 cm^-1 and a weak band at 3 643 cm^-1 , while antigorite has only one intensive band in the region. At vibration band VSi-O, chrysotile and antigorite have a similar feature at 1 071 cm^-1, but the band at 980 cm^-1 in anfigorite has been split into two bands in chrysotile - a strong one at 1 027 cm^-1 and a weak one at 949 cm^-1. In addition, antigorite has a characteristic bending vibrating band δMg-O at 570 cm^-1. Based on the analysis of the feature of crystal structure, their IR differences axe well explained. 相似文献
9.
LIU Jun-fa CHEN Yi-qiang XIE Chen GAO Wen 《浙江大学学报(A卷英文版)》2006,7(7):1253-1258
INTRODUCTION Dementia is becoming a big problem in modern life, and particularly, it takes place more frequently in mental job group and the elderly. Today, more than 20 million people in the world catch this disease (Francis et al., 1999; Almkvist et al., 1998). So how to detect underlying dementia and take preventive measure is critical for both the doctors and their patients. People with dementia always behave slowly and their memory decreases with the development of the disease. Curr… 相似文献
10.
Panos Kokkotas Panagiotis Piliouras Katerina Malamitsa Efthymios Stamoulis 《Science & Education》2009,18(5):609-629
Our paper presents an in-service primary school teachers’ training program which is based on the idea that the history of
science can play a vital role in promoting the learning of physics. This training program has been developed in the context
of Comenius 2.1 which is a European Union program. This program that we have developed in the University of Athens is based
on socioconstructivist and sociocultural learning principles with the intention of helping teachers to appropriate the basic
knowledge on the issue of falling bodies. Moreover, it has the aim to make explicit through the exploitation of authentic
historical science events, on the above topic (Aristotle’s, Galileo’s and Newton’s theories on falling bodies) the Nature
of Science (NoS), the Nature of Learning (NoL) and the Nature of Teaching (NoT). During the implementation of the program
we have used a variety of teaching strategies (e.g. group work, making of posters, making of concept maps, simulations) that
utilize historical scientific materials on the issue of falling bodies.
Panos Kokkotas is professor at the Pedagogical Department of University of Athens. He teaches Science Education, Multimedia (audio, visual etc.) teaching tools and Museum Education to both initial and in-service teachers. He is also coordinator of the Comenius 2.1 projects entitled (i) “The MAP project” (two years duration—2004–2006) and (ii) “The STeT project (Science Teacher e-Training) (2006–2008). He has α degree in Physics from the University of Athens. His Ph.D. is on science education from the University of Wales. He has taught science in high school, he has been a school consultant for science teachers. He has mainly published in science education. His recent books include Science Education I (Athens, 2000), Science Education II—The constructivist approach to teaching and learning science (Athens, 2002). Additionally he has edited Teaching Approaches to Science Education (Athens, 2000); as wells as he has edited the Greek translations of the book: Words, Science and Learning by Clive Sutton, (Athens, 2002) and also of the book Making Sense of Secondary Science by Driver et al. (Athens, 2000). He is also writer of the following science textbooks: (1) Science textbook for 5th grade of primary school based on constructivism, (2) Science textbook for 6th grade of primary school based on constructivism, Physics Textbooks for students of Upper Secondary Schools as follows: (3) Physics textbook for 16 years old, (4) Physics textbook for 17 years old student, (5) Physics textbook for 18 years old student. He is the Foundation president of the “The Hellenic Union for Science Education (EDIFE)”. Till now the Union has organized two large Conferences with international participation and also many small conferences in Greece. The 2nd Conference of EDIFE organized together with the 2nd IOSTE Symposium in Southern Europe. He is Foundation Editor of the Greek journal: Science Education: Research & Practice. This year he is responsible for the organisation of the 7th International Conference on History of Science in Science Education (Workshop of Experts), having as theme “Adapting Historical Knowledge Production to the Classroom” from Monday July 7th to Friday July 11th, 2008 in Athens. Panagiotis Piliouras is a Ph.D. holder and in 1984 he got his degree in primary education and in 1993 he got his degree in Mathematics. He attended postgraduate studies (M.Sc.) in Science Education at the Pedagogical Department of Primary Education at the University of Athens. From 1985 until 1998 he taught in a primary school. Since 1999 he has been working in the Pedagogical Department of Primary Education at the University of Athens. His current work involves laboratory teaching, in-service teacher-training and design and development educational material and educational multimedia. His research interest is focused on teaching science in a collaborative inquiry mode, social interaction in learning and instruction, methodological questions in the analysis of social activity, sociocultural perspectives to learning and development, and applications of the educational technology. Katerina Malamitsa is a Ph.D. holder from Pedagogical Department of Primary Education at the National University of Athens in the field of “Critical Thinking and Science Education in Primary School”. She got her Bachelor’s Degree as a Teacher in Primary Education in 1984. From 1986 until 1999 she taught in primary schools of Greece. In 2002 she got her Master’s Degree in “Science Education” at the Pedagogical Department of Primary Education at the National University of Athens. From 2006 till now she is a director in a Greek Primary School in Athens. She has participated in national and international conferences in topics concerning Science Education and teaching. She has published papers in Greek scientific journals. She is author of the Science textbooks which are used in the 3rd & 4th grades of Greek Primary School in national level (after evaluation from a scientific committee). Recently she has translated and standardized the “Test of Everyday Reasoning (TER)” & “The California Measure of Mental Motivation (CM3)” (levels 2&3) for the Greek population [Insight Assessment/California Academic Press LLC, 217 La Cruz Avenue, Millbrae, CA 94030, ]. Her main research interests focus on the critical thinking, the Science Education in Primary School, the use of aspects of History of Science in Teaching Science, the teacher training and education, the reflective teacher, the professional development of teachers etc. Efthymios Stamoulis is a PhD Student in the Pedagogical Department of Primary Education at the University of Ioannina. His current work involves laboratory teaching, in-service teacher-training and design and development educational material and educational multimedia. He is a director in primary school in Athens, Greece. 相似文献
| Panos KokkotasEmail: |
Panos Kokkotas is professor at the Pedagogical Department of University of Athens. He teaches Science Education, Multimedia (audio, visual etc.) teaching tools and Museum Education to both initial and in-service teachers. He is also coordinator of the Comenius 2.1 projects entitled (i) “The MAP project” (two years duration—2004–2006) and (ii) “The STeT project (Science Teacher e-Training) (2006–2008). He has α degree in Physics from the University of Athens. His Ph.D. is on science education from the University of Wales. He has taught science in high school, he has been a school consultant for science teachers. He has mainly published in science education. His recent books include Science Education I (Athens, 2000), Science Education II—The constructivist approach to teaching and learning science (Athens, 2002). Additionally he has edited Teaching Approaches to Science Education (Athens, 2000); as wells as he has edited the Greek translations of the book: Words, Science and Learning by Clive Sutton, (Athens, 2002) and also of the book Making Sense of Secondary Science by Driver et al. (Athens, 2000). He is also writer of the following science textbooks: (1) Science textbook for 5th grade of primary school based on constructivism, (2) Science textbook for 6th grade of primary school based on constructivism, Physics Textbooks for students of Upper Secondary Schools as follows: (3) Physics textbook for 16 years old, (4) Physics textbook for 17 years old student, (5) Physics textbook for 18 years old student. He is the Foundation president of the “The Hellenic Union for Science Education (EDIFE)”. Till now the Union has organized two large Conferences with international participation and also many small conferences in Greece. The 2nd Conference of EDIFE organized together with the 2nd IOSTE Symposium in Southern Europe. He is Foundation Editor of the Greek journal: Science Education: Research & Practice. This year he is responsible for the organisation of the 7th International Conference on History of Science in Science Education (Workshop of Experts), having as theme “Adapting Historical Knowledge Production to the Classroom” from Monday July 7th to Friday July 11th, 2008 in Athens. Panagiotis Piliouras is a Ph.D. holder and in 1984 he got his degree in primary education and in 1993 he got his degree in Mathematics. He attended postgraduate studies (M.Sc.) in Science Education at the Pedagogical Department of Primary Education at the University of Athens. From 1985 until 1998 he taught in a primary school. Since 1999 he has been working in the Pedagogical Department of Primary Education at the University of Athens. His current work involves laboratory teaching, in-service teacher-training and design and development educational material and educational multimedia. His research interest is focused on teaching science in a collaborative inquiry mode, social interaction in learning and instruction, methodological questions in the analysis of social activity, sociocultural perspectives to learning and development, and applications of the educational technology. Katerina Malamitsa is a Ph.D. holder from Pedagogical Department of Primary Education at the National University of Athens in the field of “Critical Thinking and Science Education in Primary School”. She got her Bachelor’s Degree as a Teacher in Primary Education in 1984. From 1986 until 1999 she taught in primary schools of Greece. In 2002 she got her Master’s Degree in “Science Education” at the Pedagogical Department of Primary Education at the National University of Athens. From 2006 till now she is a director in a Greek Primary School in Athens. She has participated in national and international conferences in topics concerning Science Education and teaching. She has published papers in Greek scientific journals. She is author of the Science textbooks which are used in the 3rd & 4th grades of Greek Primary School in national level (after evaluation from a scientific committee). Recently she has translated and standardized the “Test of Everyday Reasoning (TER)” & “The California Measure of Mental Motivation (CM3)” (levels 2&3) for the Greek population [Insight Assessment/California Academic Press LLC, 217 La Cruz Avenue, Millbrae, CA 94030, ]. Her main research interests focus on the critical thinking, the Science Education in Primary School, the use of aspects of History of Science in Teaching Science, the teacher training and education, the reflective teacher, the professional development of teachers etc. Efthymios Stamoulis is a PhD Student in the Pedagogical Department of Primary Education at the University of Ioannina. His current work involves laboratory teaching, in-service teacher-training and design and development educational material and educational multimedia. He is a director in primary school in Athens, Greece. 相似文献
11.
Anton E. Lawson 《Science & Education》2009,18(1):119-124
Allchin (2006) has misinterpreted a classic case of hypothetico-deductive (HD) science in terms of his preferred ‘let’s-gather-some-data-and-see-what-emerges’ view. The misrepresentation concerns the research program of Peter and Rosemary
Grant on Darwin’s finches. The present essay argues that the Grants’ research is HD in nature and includes a statement by
Peter Grant to that effect.
Dr. Anton E. Lawson’s career in science education began in the late 1960s in California where he taught middle school science and mathematics for 3 years before completing his PhD at the University of Oklahoma and moving to Purdue University in 1973. Lawson continued his research career at the University of California Berkeley in 1974, and then moved to Arizona State University in 1977, where he currently conducts research and teaches courses in biology, in biology teaching methods, and in research methods. Lawson has directed over 100 workshops for teachers, mostly on inquiry teaching methods, and has published over 200 articles and over 20 books including Science Teaching and the Development of Thinking (Wadsworth: Belmont, CA, 1995), Biology: A Critical Thinking Approach, (Addison Wesley: Menlo Park, CA, 1994), and The Neurological Basis of Learning, Development and Discovery (Kluwer: Dordrecht, The Netherlands, 2003). Lawson’s most recent book is an introductory biology text called Biology: An Inquiry Approach (Kendall/Hunt: Dubuque, IA, 2004). Lawson is perhaps best known for his research articles in science education, which have three times been judged to be the most significant articles of the year by the National Association for Research in Science Teaching (NARST). He has also received NARST’s career award for distinguished contributions to Science Education Research as well as the outstanding science educator of the year award by the Association for the Education of Teachers in Science. 相似文献
| Anton E. LawsonEmail: |
Dr. Anton E. Lawson’s career in science education began in the late 1960s in California where he taught middle school science and mathematics for 3 years before completing his PhD at the University of Oklahoma and moving to Purdue University in 1973. Lawson continued his research career at the University of California Berkeley in 1974, and then moved to Arizona State University in 1977, where he currently conducts research and teaches courses in biology, in biology teaching methods, and in research methods. Lawson has directed over 100 workshops for teachers, mostly on inquiry teaching methods, and has published over 200 articles and over 20 books including Science Teaching and the Development of Thinking (Wadsworth: Belmont, CA, 1995), Biology: A Critical Thinking Approach, (Addison Wesley: Menlo Park, CA, 1994), and The Neurological Basis of Learning, Development and Discovery (Kluwer: Dordrecht, The Netherlands, 2003). Lawson’s most recent book is an introductory biology text called Biology: An Inquiry Approach (Kendall/Hunt: Dubuque, IA, 2004). Lawson is perhaps best known for his research articles in science education, which have three times been judged to be the most significant articles of the year by the National Association for Research in Science Teaching (NARST). He has also received NARST’s career award for distinguished contributions to Science Education Research as well as the outstanding science educator of the year award by the Association for the Education of Teachers in Science. 相似文献
12.
An extension of the Lie algebra An-1 has been proposed [ Phys. Lett. A, 2003, 310 : 19-24 ]. In this paper, the new Lie algebra was used to construct a new higher dimensional loop algebra G^～. Based on the loop algebra G^～, the integrable couplings system of the NLS-MKdV equations hierarchy was obtained. As its reduction case, generalized nonlinear NLS-MKdV equations were obtained. The method proposed in this letter can be applied to other hierarchies of evolution equations. 相似文献
13.
Phil Cormack 《The Australian Educational Researcher》2011,38(2):133-148
This paper examines the report of the Inquiry into the Teaching of Literacy (Department of Education, Science & Training (DEST) 2005) and explores the claims it makes about reading pedagogy and the centrality of particular “methods” or “approaches” to teaching
backed by “scientific” evidence. Discourse analysis of the report shows that its logics allow only certain kinds of evidence
to count in policy, and that it reduces difficult social and political issues to questions of technique. This allows the report
to recommend an approach whereby qualitative insights and practitioners’ experience can be bypassed through valorising methods
developed and verified by scientific researchers. The report’s claims are considered genealogically in the light of historical
cases from the early nineteenth century, where educational reformers struggled with the issue of how to educate the children
of the poor. In one, the monitorial system promoted by Lancaster in England, there was a focus on reading which made teachers
or monitors artefacts of a standardised method. By way of contrast, in Scotland, a classroom approach developed by Stow (1854) made the teacher central to the process, as someone who sensitively interpreted and extended students’ experiences with
texts. Stow’s approach would form the model for the modern classroom in compulsory state schooling, while the monitorial system
would eventually be abandoned as ineffective. The historical cases demonstrate the dangers of approaches to policy that fail
to account for the complex interplay between teacher, student and text in the reading lesson. 相似文献
14.
Jian-hua Hu 《Frontiers of Education in China》2006,1(3):402-416
After the founding of the People’s Republic of China, the administrative system of higher education then was characterized
as “centralized”, “Tiao and Kuai” were segmented (some higher education institutions were directly administered by provincial
governments, and some were affiliated to the relative administrative departments of the state) and higher education institutions
(HEIs) were government-run. The reform in the administrative system of higher education launched in the 1980s broke down the
segmentation of “Tiao and Kuai”, and changed it into a new administrative system emphasizing the role of the provincial governments
(“Kuai-oriented mode”). Thus, HEIs gained more autonomy and tremendous changes have taken place in the relation between HEIs
and the government. However, weakening the government’s administrative control over HEIs and readjusting government-HEIs relations
are still the main concerns in reforming the administrative system of Chinese higher education.
__________
Translated from Journal of Nanjing Normal University (Social Science), 2005 (4) 相似文献
15.
Student Use of Scaffolding Software: Relationships with Motivation and Conceptual Understanding 总被引：1，自引：1，他引：0
This study was designed to theoretically articulate and empirically assess the role of computer scaffolds. In this project,
several examples of educational software were developed to scaffold the learning of students performing high level cognitive
activities. The software used in this study, Artemis, focused on scaffolding the learning of students as they performed information
seeking activities. As 5th grade students traveled through a project-based science unit on photosynthesis, researchers used
a pre-post design to test for both student motivation and student conceptual understanding of photosynthesis. To measure both
variables, a motivation survey and three methods of concept map analysis were used. The student use of the scaffolding features
was determined using a database that tracked students’ movement between scaffolding tools. The gain scores of each dependent
variable was then correlated to the students’ feature use (time and hits) embedded in the Artemis Interface. This provided
the researchers with significant relationships between the scaffolding features represented in the software and student motivation
and conceptual understanding of photosynthesis. There were a total of three significant correlations in comparing the scaffolding
use by hits (clicked on) with the dependent variables and only one significant correlation when comparing the scaffold use
in time. The first significant correlation (r = .499, p < .05) was between the saving/viewing features hits and the students’ task value. This correlation supports the assumption
that there is a positive relationship between the student use of the saving/viewing features and the students’ perception
of how interesting, how important, and how useful the task is. The second significant correlation (r = 0.553, p < 0.01) was between the searching features hits and the students’ self-efficacy for learning and performance. This correlation
supports the assumption that there is a positive relationship between the student use of the searching features and the students’
perception of their ability to accomplish a task as well as their confidence in their skills to perform that task. The third
significant correlation (r = 0.519, p < 0.05) was between the collaborative features hits and the students’ essay performance scores. This correlation supports
the assumption that there is a positive relationship between the student use of the collaborative features and the students’
ability to perform high cognitive tasks. Finally, the last significant correlation (r = 0.576, p < 0.01) was between the maintenance features time and the qualitative analysis of the concept maps. This correlation supports
the assumption that there is a positive relationship between the student use of the maintenance features and student conceptual
understanding of photosynthesis.
This material is based upon work supported by the National Science Foundation (REC9980055). Any opinions, findings, and conclusions
or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National
Science Foundation. 相似文献
16.
Feature selection ks a process where a miniraal feature subset ks selected from an original feature set according to a certain measure. In this paper, feature relevancy ks defined by an inconsistency rate. A bidirectional automated branch and bound algorithm is presented. It is a new complete search algorithm for feature selection, which performs feature deletion and feature addition in parallel.Its bound ks determined by inconsistency rate of the original feature set, hence termed as ‘automated‘. Experimental study shows that it ks fit for feature selection. 相似文献
17.
Sandra Stotsky 《Prospects》2007,37(4):489-500
This article recounts the battle in the “math wars” that took place in Massachusetts, United States in 1999–2000 over the
scope, content and teaching of the state’s K-12 mathematics curriculum. Harsh controversies arose between the partisans of
a “reform-math” movement stressing an undefined “conceptual understanding” and student-created algorithms and those, including
the author, advocating an academically stronger mathematics curriculum as well as fluency in students’ computational skills
with whole numbers and fractions. While “reform-math” supporters privileged and fought for a radical constructivist view of
mathematics learning, the Massachusetts Board of Education decided to implement mathematics standards that linked strong academic
content to the development of authentic computational competencies in students. Following the introduction of newly revised
mathematic standards in 2000, real progress was reached in terms of student achievement. According to the results of the 2007
tests in reading and in mathematics for Grade 4 and Grade 8, reported by the National Assessment of Educational Progress (NAEP),
Massachusetts ranked first nationwide in mathematics and tied for first place in reading, with its students having made significant
gains from 2005 to 2007. The article makes a strong case for evidence-based curriculum design and implementation, freed, as
much as possible, of mythologies and misconceptions. It explains why it was necessary to reject the theoretical assumptions
and pedagogical strategies embedded in the National Council of Teachers of Mathematics’ 1989 and 2000 standards documents.
It also highlights the importance of a strong personal life and working “principles” underpinning the mission of curriculum
developers: successful reform “strategies” are indeed meaningless in the absence of such durable personal beliefs and values.
Sandra Stotsky is Professor of Education Reform and holds the 21st Century Chair in Teacher Quality in the Department of Education Reform at the University of Arkansas in Fayetteville, USA. From 2003 to 2005 she was a Research Scholar at Northeastern University, and from 1999 to 2003 she was Senior Associate Commissioner at the Massachusetts Department of Education. During that period she directed complete revisions of the state’s licensing regulations for teachers, administrators, and teacher training schools, the state’s tests for teacher licensure, and the state’s PreK-12 standards for mathematics, history and social science, English language arts and reading, science and technology/engineering, early childhood (preschool), and instructional technology. She is editor of What’s at Stake in the K-12 Standards Wars: A Primer for Educational Policy Makers (Peter Lang, 2000) and author of Losing Our Language (Free Press, 1999, reprinted by Encounter Books, 2002). In May 2006 she was appointed to the National Mathematics Advisory Panel and is a co-author of its final report, released in March 2008. 相似文献
| Sandra StotskyEmail: |
Sandra Stotsky is Professor of Education Reform and holds the 21st Century Chair in Teacher Quality in the Department of Education Reform at the University of Arkansas in Fayetteville, USA. From 2003 to 2005 she was a Research Scholar at Northeastern University, and from 1999 to 2003 she was Senior Associate Commissioner at the Massachusetts Department of Education. During that period she directed complete revisions of the state’s licensing regulations for teachers, administrators, and teacher training schools, the state’s tests for teacher licensure, and the state’s PreK-12 standards for mathematics, history and social science, English language arts and reading, science and technology/engineering, early childhood (preschool), and instructional technology. She is editor of What’s at Stake in the K-12 Standards Wars: A Primer for Educational Policy Makers (Peter Lang, 2000) and author of Losing Our Language (Free Press, 1999, reprinted by Encounter Books, 2002). In May 2006 she was appointed to the National Mathematics Advisory Panel and is a co-author of its final report, released in March 2008. 相似文献
18.
A genetic linkage map comprised of 131 loci was constructed with an F2 population derived from an inter-subspecific cross betweenBrassica campestris L. ssp.chinensis cv. ‘aijiaohuang’ and ssp.rapifera cv. ‘qisihai’. The genetic map included 93 RAPD loci, 36 AFLP loci and 2 morphological loci organized into 10 main linkage
groups (LGs) and 2 small groups, covering 1810.9cM with average distance between adjacent markers being approximately 13.8cM.
The map is suitable for identification of molecular markers linked to important agronomic traits, QTL analysis, and even for
marker-assisted selection in breeding programs of Chinese cabbage and turnip.
Project (No. 39870509) supported by the National Natural Science Foundation of China 相似文献
19.
INTRODUCTION Improvements in sensor and wireless commu-nication technology enable accurate, automated de-termination and dissemination of a user or object’sposition. There is great interest in exploiting thispositional data through location-based services (LBS)Because of the widespread use of relatively cheapcellular phones or other mobile devices, many loca-tion services will be based on tracking technology toreveal the mobile user’s “personal” location at anygiven time (Einar, 200… 相似文献
20.
LIN Zheng-yan SHEN Xin-mei 《浙江大学学报(A卷英文版)》2006,7(6):1088-1091
INTRODUCTION Chung (1947) proved the so-called “Chung’s strong law of large numbers”. Let {Xn, n∈ù} be a sequence of independent random variables with EXn=0 for all n and 0相似文献