Search results for author:"Rafi Nachmias"
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A research framework for the study of a campus-wide Web-based academic instruction project
Rafi Nachmias
Internet and Higher Education Vol. 5, No. 3 (2002) pp. 213–229
The use of the Internet as an instructional tool in higher education is rapidly increasing. The author provides a research framework for the study of campus-wide academic instruction using the Web. This framework consists of three levels: (a) the...
Language: English
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What can instructors and policy makers learn about Web-supported learning through Web-usage mining
Anat Cohen; Rafi Nachmias
Internet and Higher Education Vol. 14, No. 2 (March 2011) pp. 67–76
This paper focuses on a Web-log based tool for evaluating pedagogical processes occurring in Web-supported academic instruction and students' attitudes. The tool consists of computational measures which demonstrate what instructors and policy makers ...
Language: English
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Implementing a Cost Effectiveness Analyzer for Web-Supported Academic Instruction: A Campus Wide Analysis
Anat Cohen; Rafi Nachmias
European Journal of Open, Distance and E-Learning Vol. 2 (2010)
This paper describes the implementation of a quantitative cost effectiveness analyzer for Web-supported academic instruction that was developed in Tel Aviv University during a long term study. The paper presents the cost effectiveness analysis of...
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Learning in Virtual Courses and Its Relationship to Thinking Styles
Rafi Nachmias; Nehama Shany
Journal of Educational Computing Research Vol. 27, No. 3 (2002) pp. 315–29
Examines student learning in virtual courses and the relationship between their performance and thinking styles based on a study of Israeli junior high school students. Topics include students' scholastic performance and grades; successful Web...
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Current State of Web-Supported Courses at Tel-Aviv University
Anat Shemla; Rafi Nachmias
International Journal on E-Learning Vol. 6, No. 2 (April 2007) pp. 235–246
This research aims to identify, classify, and quantify the evolving use of web pedagogies on course websites, by lecturers in a traditional university. The main research questions are: (a) For what purposes and to what extent do lecturers integrate...
Topics: Internet, Collaboration, eLearning, Faculty, Information Communication Technologies, Post Secondary Education, Virtual Environments
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Online Learning and Performance Support in Organizational Environments Using Performance Support Platforms
Eran Gal; Rafi Nachmias
Performance Improvement Vol. 50, No. 8 (September 2011) pp. 25–32
An electronic performance support system (EPSS) is a method that integrates learning and task performance into one single action by providing information and guidance during performance. Wide-range EPSS effectiveness research has been conducted by...
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[Chais] Implementing On-Line Learning and Performance Support Using an EPSS
Eran Gal; Rafi Nachmias
Interdisciplinary Journal of E-Learning and Learning Objects Vol. 7, No. 1 (Jan 01, 2011) pp. 213–224
Electronic Performance Support Systems (EPSS) is a method for on-line learning and performance support applied in organizations for the last 20 years. EPSS integrates learning as well as task performance into a single action. It does so by providing ...
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Online persistence in higher education web-supported courses
Arnon Hershkovitz; Rafi Nachmias
Internet and Higher Education Vol. 14, No. 2 (March 2011) pp. 98–106
This research consists of an empirical study of online persistence in Web-supported courses in higher education, using Data Mining techniques. Log files of 58 Moodle websites accompanying Tel Aviv University courses were drawn, recording the...
Language: English
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Effectiveness of learning in online academic courses compared with face-to-face courses in higher education
Tal Soffer; Rafi Nachmias
Journal of Computer Assisted Learning Vol. 34, No. 5 (October 2018) pp. 534–543
This study examined the effectiveness of 3 online courses compared with the same 3 courses in a face-to-face (F2F) format, which had the same characteristics (e.g., the same instructor and final exam content and place). Effectiveness was examined by ...
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Research Insights from a Decade of Campus-Wide Implementation of Web-Supported Academic Instruction at Tel Aviv University
Rafi Nachmias; Judith Ram
International Review of Research in Open and Distance Learning Vol. 10, No. 2 (Apr 02, 2009)
This paper describes the scope and outcomes of Virtual TAU, a campus-wide project that aims to integrate information and communication technologies into the academic instruction at Tel Aviv University (TAU). It provides data, insights, and...
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Learning about Online Learning Processes and Students' Motivation through Web Usage Mining
Arnon Hershkovitz; Rafi Nachmias
Interdisciplinary Journal of E-Learning and Learning Objects Vol. 5, No. 1 (Jan 01, 2009) pp. 197–214
This study illustrates the potential of applying Web usage mining - the analysis of Web log files - in educational research. It consists of two sub-studies and focuses on two types of analysis, both related to the whole learning process:...
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The Design and Implementation of an Introductory Computer Literacy Course for Teachers and Educational Decision-Makers
Chen David; Nachmias Rafi
T.H.E. Journal Vol. 11, No. 4 (1984) pp. 113–16
Because of the rapid introduction of computers into the Israeli education system, teachers resent the new technology or are unrealistically enthusiastic. Therefore, a split curriculum which enables teachers to follow a more logical path of adoption...
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A quantitative cost effectiveness model for Web-supported academic instruction
Anat Cohen; Rafi Nachmias
Internet and Higher Education Vol. 9, No. 2 (2006) pp. 81–90
This paper describes a quantitative cost effectiveness model for Web-supported academic instruction. The model was designed for Web-supported instruction (rather than distance learning only) characterizing most of the traditional higher education...
Language: English
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Students' use of content in Web-supported academic courses
Rafi Nachmias; Limor Segev
Internet and Higher Education Vol. 6, No. 2 (2003) pp. 145–157
The use of the Internet as an instructional tool in higher education is rapidly increasing. Today, there is an increase in the development of academic course websites with huge amounts of learning materials imbedded within them. However, there is...
Language: English
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Desperately Looking for the Focus
Abraham Arcavi; Rafi Nachmias
Mathematics in School Vol. 19, No. 2 (1990) pp. 19–23
Explores the parallel axes representation (PAR) of linear functions. Illustrates the influences of slope and intercept values on the representation. Appended are five exercises for making the PAR programs using BASIC language. (YP)
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Current State of Web Sites in Science Education--Focus on Atomic Structure
Inbal Tuvi; Rafi Nachmias
Journal of Science Education and Technology Vol. 10, No. 4 (2001) pp. 293–303
Explores to what extent the web's advanced graphical tools and computational power are implemented in science education. Focuses on the pedagogical and technological characteristics of web sites attempting to teach the subject of atomic structure. ...
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Taxonomy of Scientifically Oriented Educational Websites
Rafi Nachmias; Inbal Tuvi
Journal of Science Education and Technology Vol. 10, No. 1 (2001) pp. 93–104
Discusses science educators' interest in Web-based learning (WBL). Provides a classification scheme by which scientifically-oriented educational websites can be evaluated for content level. Presents an example of site evaluation in the field of...
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Implementing On-Line Learning and Performance Support Using an EPSS
Eran Gal; Rafi Nachmias
Interdisciplinary Journal of E-Learning and Learning Objects Vol. 7, No. 1 (Jan 01, 2011) pp. 213–224
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A Study of Web-Based Learning Environments focusing on Atomic Structure
Inbal Tuvi-Arad; Rafi Nachmias
Journal of Computers in Mathematics and Science Teaching Vol. 22, No. 3 (2003) pp. 225–240
The World Wide Web is a promising medium for chemical education. The availability of huge chemical databases, of three-dimensional and dynamic graphics together with the computational power and the communicational features of the Web, offer...
Topics: Communication, Graphics
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Wikipedia as a Platform for Impactful Learning: A New Course Model in Higher Education
Shani Evenstein Sigalov; Rafi Nachmias
Education and Information Technologies Vol. 22, No. 6 (2017) pp. 2959–2979
In January 2014, 62 students graduated from the first for-credit course dedicated to Wikipedia. Learning focused on improved consumption of information, and collaborative construction of knowledge using the Wikipedia platform. This paper...
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Evaluations of Science Laboratory Data: The Role of Computer-Presented Information
Rafi Nachmias; Marcia C. Linn
Journal of Research in Science Teaching Vol. 24, No. 5 (1987) pp. 491–506
Examines (1) how students evaluate information obtained in the science laboratory; (2) the effects of use of microcomputer-based laboratory; and, (3) the effects of explicit instruction on critical evaluation skills. Discusses results in terms of...
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The Use of Digital Repositories for Enhancing Teacher Pedagogical Performance
Anat Cohen; Sharon Kalimi; Rafi Nachmias
Interdisciplinary Journal of E-Learning and Learning Objects Vol. 9, No. 1 (Jan 01, 2013) pp. 201–218
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Internet Usage by Students in an Israeli High School
Rafi Nachmias; David Mioduser; Anat Shemla
Journal of Educational Computing Research Vol. 22, No. 1 (2000) pp. 55–73
Examines the extent and characteristics of Internet use among junior- and senior high school students in Israel. Discusses the link between Internet use and school activities, age and sex differences, and findings that indicate primary use is for...
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Types of Participant Behavior in a Massive Open Online Course
Tali Kahan; Tal Soffer; Rafi Nachmias
The International Review of Research in Open and Distributed Learning Vol. 18, No. 6 (Sep 25, 2017)
In recent years there has been a proliferation of massive open online courses (MOOCs), which provide unprecedented opportunities for lifelong learning. Registrants approach these courses with a variety of motivations for participation....
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Using Computers To Teach Remedial Spelling to a Student with Low Vision: A Case Study
David Mioduser; Orly Lahav; Rafi Nachmias
Journal of Visual Impairment & Blindness Vol. 94, No. 1 (2000) pp. 15–25
A study investigated the use of a diagnostic and remedial adaptive computer tool to help an eighth-grader with low vision decrease spelling mistakes. Results indicate a clear change in the students' performance, from phonetic writing to process...
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[Chais] Drills, Games or Tests? Evaluating Students' Motivation in Different Online Learning Activities, Using Log File Analysis
Galit Ben-Zadok; Moshe Leiba; Rafi Nachmias
Interdisciplinary Journal of E-Learning and Learning Objects Vol. 7, No. 1 (Jan 01, 2011) pp. 235–248
The main purpose of this study is to compare students' behaviors in three types of learning activities (drills, games, and self-tests) in order to explore students' motivation to learn in each one of them. For that purpose, the actions of 7,434...
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[Chais] The Usage of Data Repositories: The Case of MAOR
Anat Cohen; Eli Shmueli; Rafi Nachmias
Interdisciplinary Journal of E-Learning and Learning Objects Vol. 7, No. 1 (Jan 01, 2011) pp. 323–338
MAOR (Meta-data and Object Repository) is a national Israeli repository of online learning ob- ject meta-data. MAOR serves as a major online learning resource repository, containing materials for both K-12 and Higher Education and enabling teachers...
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The Use of Digital Repositories for Enhancing Teacher Pedagogical Performance
Anat Cohen; Sharon Kalimi; Rafi Nachmias
Interdisciplinary Journal of E-Learning and Learning Objects Vol. 9 (2013)
This research examines the usage of local learning material repositories at school, as well as related teachers' attitudes and training. The study investigates the use of these repositories for enhancing teacher performance and assesses whether the...
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Diffusion of Web Supported Instruction in Higher Education--The Case of Tel-Aviv University
Tal Soffer; Rafi Nachmias; Judith Ram
Educational Technology & Society Vol. 13, No. 3 (2010) pp. 212–223
This paper describes a study that focused on long-term web-supported learning diffusion among lecturers at Tel Aviv University (TAU), from an organizational point of view. The theoretical models we used to examine this process are Rogers' model for "...
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Comparison of Online Learning Behaviors in School vs. at Home in Terms of Age and Gender Based on Log File Analysis
Galit Ben-Zadok; Moshe Leiba; Rafi Nachmias
Interdisciplinary Journal of E-Learning and Learning Objects Vol. 6, No. 1 (Jan 01, 2010) pp. 305–322
The research objectives of this study are: (a) to compare learning behaviors in an online science learning environment – in school vs. at home; and (b) to explore the existence of some behavioral differences, in school and at home, in terms of age...
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The Usage of Data Repositories: The Case of MAOR
Anat Cohen; Eli Shmueli; Rafi Nachmias
Interdisciplinary Journal of E-Learning and Learning Objects Vol. 7, No. 1 (Jan 01, 2011) pp. 323–338
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Drills, Games or Tests? Evaluating Students' Motivation in Different Online Learning Activities, Using Log File Analysis
Galit Ben-Zadok; Moshe Leiba; Rafi Nachmias
Interdisciplinary Journal of E-Learning and Learning Objects Vol. 7, No. 1 (Jan 01, 2011) pp. 235–248
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Content Consumption and Hierarchical Structures of Web-supported Courses
Arnon Hershkovitz; Sharon Hardof-Jaffe; Rafi Nachmias
Journal of Interactive Learning Research Vol. 25, No. 3 (July 2014) pp. 353–371
This study presents an empirical investigation of the relationship between the hierarchical structure of content delivered to students within a Learning Management System (LMS) and its actual consumption. To this end, campus-wide data relating to 1...
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[Chias] Learning about Ecological Systems by Constructing Qualitative Models with DynaLearn
Moshe Leiba; Ruth Zuzovsky; David Mioduser; Yehuda Benayahu; Rafi Nachmias
Interdisciplinary Journal of E-Learning and Learning Objects Vol. 8, No. 1 (Jan 01, 2012) pp. 165–178
A qualitative model of a system is an abstraction that captures ordinal knowledge and predicts the set of qualitatively possible behaviours of the system, given a qualitative description of its structure and initial state. This paper examines an...
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Learnet—A Model for Virtual Learning Communities in the World Wide Web
Rafi Nachmias; David Mioduser; Orly Lahav; Avigail Oren
International Journal of Educational Telecommunications Vol. 6, No. 2 (2000) pp. 141–157
Computer mediated communication (CMC), a central feature of cyberspace, is also a key resource for the creation of innovative technology-based educational environments. However, the real significance of these environments for education is still...
Topics: Educational Technology, Community, Virtual Environments
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Types of online hierarchical repository structures
Arnon Hershkovitz; Ronit Azran; Sharon Hardof-Jaffe; Rafi Nachmias
Internet and Higher Education Vol. 14, No. 2 (March 2011) pp. 107–112
This study presents an empirical investigation of online hierarchical repositories of items presented to university students in Web-supported course websites, using Web mining methods. To this end, data from 1747 courses were collected, and the use...
Language: English
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Active learners’ characterization in MOOC forums and their generated knowledge
Anat Cohen; Udi Shimony; Rafi Nachmias; Tal Soffer
British Journal of Educational Technology Vol. 50, No. 1 (January 2019) pp. 177–198
This study explores and characterizes learners' participation patterns in MOOC forums, as well as the factors that correlate with learners' participation. Educational data mining and learning analytics methods were used to retrieve and analyze the...
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Learning about Ecological Systems by Constructing Qualitative Models with DynaLearn
Moshe Leiba; Ruth Zuzovsky; David Mioduser; Yehuda Benayahu; Rafi Nachmias
Interdisciplinary Journal of E-Learning and Learning Objects Vol. 8, No. 1 (Jan 01, 2012) pp. 165–178
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Web-based Learning Environments: Current Pedagogical and Technological State
David Mioduser; Rafi Nachmias; Orly Lahav; Avigail Oren
Journal of Research on Computing in Education Vol. 33, No. 1 (2000) pp. 55–76
A classification scheme was developed and implemented for the study of 436 educational Web sites focusing on mathematics, science, and technology learning. Results indicate that many educational Web sites are still predominantly text-based and do...
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Learning about Ecological Systems by Constructing Qualitative Models with DynaLearn
Moshe Leiba; Ruth Zuzovsky; David Mioduser; Yehuda Benayahu; Rafi Nachmias
Interdisciplinary Journal of E-Learning and Learning Objects Vol. 8 (2012) pp. 165–178
A qualitative model of a system is an abstraction that captures ordinal knowledge and predicts the set of qualitatively possible behaviours of the system, given a qualitative description of its structure and initial state. This paper examines an...