Scale and the evolutionarily based approximate number system: an exploratory study     

Cesar Delgado  M. Gail Jones  Hye Sun You  Laura Robertson  Katherine Chesnutt  Justin Halberda 《International Journal of Science Education》2013,35(8):1008-1024

ABSTRACT

Crosscutting concepts such as scale, proportion, and quantity are recognised by U.S. science standards as a potential vehicle for students to integrate their scientific and mathematical knowledge; yet, U.S. students and adults trail their international peers in scale and measurement estimation. Culturally based knowledge of scale such as measurement units may be built on evolutionarily-based systems of number such as the approximate number system (ANS), which processes approximate representations of numerical magnitude. ANS is related to mathematical achievement in pre-school and early elementary students, but there is little research on ANS among older students or in science-related areas such as scale. Here, we investigate the relationship between ANS precision in public school U.S. seventh graders and their accuracy estimating the length of standard units of measurement in SI and U.S. customary units. We also explored the relationship between ANS and science and mathematics achievement. Accuracy estimating the metre was positively and significantly related to ANS precision. Mathematics achievement, science achievement, and accuracy estimating other units were not significantly related to ANS. We thus suggest that ANS precision may be related to mathematics understanding beyond arithmetic, beyond the early school years, and to the crosscutting concepts of scale, proportion, and quantity.  相似文献   

What Teachers See as Creative Incidents in Elementary Science Lessons     

Lynn D. Newton  Douglas P. Newton 《International Journal of Science Education》2013,35(15):1989-2005

Teachers are often urged to nurture creativity but their conceptions of creativity in specific school subjects may have limitations which weaken their attempts to do so. Primary school teachers in England were asked to rate lesson activities according to the opportunity they offered children for creative thought in science. The teachers could, overall, distinguish between creative and reproductive activities but, as predicted, there was evidence of narrow conceptions of school science creativity, biased towards fact finding, practical activity, and technological design. Some teachers saw creativity in essentially reproductive activities and in what simply stimulated interest and on‐task talk. Some implications and recommendations for teacher training and professional development are discussed.  相似文献   

Perceptions and Practices: Biology graduate teaching assistants’ framing of a controversial socioscientific issue     

Grant Gardner  Gail Jones 《International Journal of Science Education》2013,35(8):1031-1054

Graduate teaching assistants (GTAs) are gaining increasing responsibility for the instruction of undergraduate science students, yet little is known about their beliefs about science pedagogy or subsequent classroom practices. This study looked at six GTAs who were primary instructors in an introductory biology laboratory course. Teaching assistants taught a lesson about the potential social, health, and environmental impacts of genetically modified crops. Through classroom observations and in‐depth interviews, the researchers examined how instructors chose to frame their lessons and what GTAs perceived as important for students to know about this particular socioscientific issue (SSI). Results showed a disconnect between the relatively mature conceptualizations of effective SSI instruction that emerged during interviews and classroom practice.  相似文献   

Developing a Scientist: A retrospective look     

Gail Jones  Amy Taylor  Jennifer H. Forrester 《International Journal of Science Education》2013,35(12):1653-1673

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A statewide university system (16 campuses) creates collaborative learning communities in Second Life     

Lynn Jones Eaton  Mario Guerra  Stephanie Corliss  Leslie Jarmon 《Educational Media International》2013,50(1):43-53

The Latvian Education Informatization System LIIS project covers the whole information grid: education content, management, information services, infrastructure and user training at several levels – schools, school boards and Ministry of Education and Science. Informatization is the maintained process of creating the technical, economical and social conditions for fulfilment of information needs. The initiative started in 1997. The strategy for education content creation for 2001–2004 is to cover all forms of cognition – rational, empirical, emotional and modelling – and several levels of skills for all levels of education. The Current LIIS results as at 2002 have been that: developed teaching aids are being used (workbooks, interactive software, tests etc) (approx. 20% of the total amount of high school programme can be taught using information and communication technologies); about 1000 sites are using LIIS school management software; 66% of all teachers are trained on ICT usage; 97% of schools have dial‐up connection to the Internet in year 2002 (44% have a permanent connection); and the number of pupils per computer has decreased from 67 (year 1997) to 20 (year 2002).

Le système d'information LIIS dans l'éducation en Lithuanie

Le projet du système LIIS du système information pour l'éducation comme toute la grile: contenu de l'éducation, management, services d'information, infrastructure et fomation des utilisateurs à divers niveaux: écoles, administrtion des écoles, Ministerie de l'Education et de la Science. Ce projet a débuté en 1997. La stratégie pour créer un contenue de l'éducation 2001–2004 doit couvrir toutes les formes de la connaissance traditionnelle, ainsi que émotionelle, proposant des modèles et divers niveaux de compétences pour tous les niveaux d'éducation. Les résultats actuels du LIIS ont été en 2002: Les moyens d'enseignement dévelpppés sont utilisés (livres, software interactif, tests, etc.) (approximaticement 20% du programme total des programmes des écoles seconfaires peuvent être enseignés en utilisant les technologies de l'information); environ 1000 titres utilisant ler software de management des écoles; 66% des maîtres ont été formé à l'emploi de TIC; 97 % des écoles ont été connectés à Internet en 2002 (44% de connection permanente); et le nombre d'élèves par ordinateur a diminué de 67 (en 1997) à 20 (en 2002)

Das lettisches Bildungsinformationssystem LIIS

Das lettische Bildungsinformationssystem, das LIIS – Projekt, umfasst das gesamte Informationsraster: Bildungsinhalt, Management, Informationsdienste, Infrastruktur sowie Nutzerausbildung auf mehreren Ebenen – Schulen, Schulkommissionen und Bildungsministerien. Die Initiative begann in 1997. Das Konzept für die Erfassung von Bildungsinhalten für 2001–2004 ist, alle Formen des Zugangs – rational, empirisch, emotional, modellierend – und mehrere Stufen von Fertigkeiten für alle Bildungsniveaus zu berücksichtigen. Das gegenwärtige Stand von LIIS (2002) ist: schon entwickelte Lehrhilfen werden benutzt (Workbooks, interaktive Software, Tests usw.) (Ca. 20% des gesamten Highschool‐Programms kann mit Hilfe von Informationstechnologie gelehrt werden); an rund 1000 Standorten wird LIS Schulmanagement‐Software genutzt; 66% aller Lehrer wurden in die Verwendung von ICT eingeführt; 97% aller Schulen haben im Jahr 2002 Wählverbindung in das Internet (36%: permanente Verbindung); die Anzahl von Schülern pro Computer hat von 67 (Jahr 1997) auf 25 (Jahr 2002) abgenommen.  相似文献   

National numeracy initiatives in England and Wales: a comparative study of policy     

Dylan V. Jones 《Curriculum Journal》2013,24(1):5-23

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THE GOAL STRUCTURE OF TEACHERS IN COMPREHENSIVE SCHOOLS     

Douglas S. Finlayson 《Educational research; a review for teachers and all concerned with progress in education》2013,55(3):188-193

A number of statements of various analytically‐derived output and support goals appropriate to secondary schools were submitted for evaluation, as ideal school goals, to a sample of teachers drawn from ten comprehensive schools. The teachers’ top priorities were output goals referring to the balanced development of pupils’ potentialities, interests and skills, and management goals referring to the regulation of social conflict within the organization, and social cohesion amongst the participation of the staff. Of relatively low priority are output goals reflecting a concern for the maintenance of the authority structure within and the economic needs of the wider society, and direct service to the community within which the school is set. Adaptation to the needs of that community and the maintenance of the status of the school are support goals which are also given relatively low priority.  相似文献   

The impact of federal financial aid policy upon higher education access     

Dannielle Joy Davis  Lisa Celeste Green-Derry  Brandon Jones 《Journal of educational administration and history》2013,45(1):49-57

This article reviews the history of financial aid policy from the Higher Education Act of 1965 to its reauthorisation in 1992 and the subsequent ramifications upon African-American students. It considers issues of race and class with regard to college access. This work concludes with a look at contemporary aid, as well as offers race- and class-conscious financial aid by increasing college affordability to low-income students, as potential solutions to broadening educational access to Black Americans.  相似文献   

Two Generalizations of the Item Discrimination Index to Multi-Score Items     

Douglas R. Whitney  Darrell L. Sabers 《Journal of Experimental Education》2013,81(3):88-92

Two general item analysis indices which apply to multi-score items are developed as generalizations of a popular index applicable to dichotomous items. The indices of discrimination are of two types: one based on differential difficulty and the other on net number of positive discriminations. The usefulness and limitations of each are discussed.  相似文献   

A Comparison of the Effects of Practice Tests and Traditional Review on Performance and Calibration     

Linda Bol  Douglas J. Hacker 《Journal of Experimental Education》2013,81(2):133-151

The impact of practice tests on students' calibration and exam performance for multiple-choice and essay items was investigated. The participants were 59 graduate students enrolled in 1 of 2 sections (practice tests and no practice tests) of an introductory research methods in education course. Practice tests were associated with significantly lower scores on the midterm multiple-choice items and less accurate predictions and postdictions on those items. High-achieving students were more accurate in their calibrations than low-achieving students. Among low-achieving students, prediction and postdiction accuracy was significantly higher for essay than for multiple-choice items. In open-ended responses, a large percentage of students who took the practice tests indicated that they were a beneficial review strategy.  相似文献