Computer science education as a cultural encounter: a socio-cultural framework for articulating teaching difficulties

This study demonstrates the power of the cultural encounter metaphor in explaining learning and teaching difficulties, using as an example computer science education (CSE). CSE is envisioned as an encounter between veterans of two computer-oriented cultures, that of the teachers and that of the students. Forty questionnaires administered to CS teachers, as well as in-depth interviews with four leading CS teachers, revealed those teachers perceived their students as having a different perspective on the domain, on what constitutes a beneficial approach to problem-solving and on the nature of satisfactory solutions. In fact, the teachers portrayed their teaching as a continual battle in which their success is limited. Yet, their instruction was characterized as a composite of enforcement and compromise, with few and isolated attempts at building on students’ cultural capital. The cultural encounter metaphor, while still viewing students as novices to the professional CS culture represented by their teachers, emphasizes that good teaching requires building upon students’ cultural capital to create zones of fertile cultural encounter.     

Computer science students’ use of the internet for academic purposes: difficulties and learning processes

ABSTRACT

Higher-education students now have more alternatives for searching for information than previous generations had. The Internet is a vast ocean of information sources, albeit with diverse reliability and quality. In Web 2.0 platforms, any participant can be a content creator. This reality is challenging for both the instructors and the students. We conducted interviews with 12 Computer Science students and 8 instructors from two universities to (a) identify the difficulties students encounter, if at all, (b) identify the learning processes that students undergo, if at all, when using the Internet for their CS studies, in particular, programming tasks; and (c) elicit instructors’ perceptions of students’ use of the Internet. Both students and instructors agreed that although using the Internet is not trivial, direct teaching of this skill is unnecessary. Instructors differed in their attitudes towards students’ use of the internet. We found that in the first year the students’ use of the Internet and their difficulties are similar to reports in the empirical literature, and echo the instructors’ concerns. However, after extensive experience, students undergo a learning process, and their ability to navigate the myriad sources, as well as to search, manage, and effectively evaluate Internet sources improves. Students mentioned their improved abilities to code as a means to effectively evaluate information sources.     

Gardeners and Cinema Tickets: High School Students' Preconceptions of Concurrency

We are developing a course in concurrency for high school students. The course is being developed in phases of refinement on the basis of feedback received from teachers and students. We have found persistent difficulties that students have in understanding fundamental concepts, which has led us to investigate their preconceptions of concurrency. This paper describes the results of this investigation. The work is anchored in constructivism, which stresses the importance of prior knowledge upon which new knowledge is built. The students were asked to solve concurrency problems, both prior to the course and after learning just the basics of the subject. Analysis of solutions reveals that students: (a) find that solving a problem on the order of actions is more natural than the critical section problem, (b) are divided in their preference for centralized and decentralized solutions, (c) employ inappropriate heuristics, (d) invent computational models as they work, (e) attribute parallelism where it does not exist, (f) attribute intelligence to systems. Based on these findings, we were able to modify the course to address these problems of prior knowledge.     

The effect of prior education on students’ competency in digital logic: the case of ultraorthodox Jewish students

In line with the growing interest in extending the diversity of CS students, we examined the performance of a unique group of students studying an introductory course in Digital logic: ultraorthodox Jewish men, whose previous education was based mostly on studying Talmud and who lacked a conventional high-school education. We used questions from the Digital Logic Concept Inventory . We compared the results to those of religious Jewish men with a conventional high-school education, and to the results reported in the literature. The ultraorthodox group performed better than the other groups in tasks that concerned number representation. No other statistically significant differences were found. Talk-aloud protocols revealed that the ultraorthodox students utilized a viable conceptual understanding in their performance. We can conclude that students’ unique, alternative prior education should not be merely viewed as an obstacle to their academic studies, but also as a potential source for strengths.     

Fertile Zones of Cultural Encounter in Computer Science Education

We explain certain learning difficulties in computer science education as resulting from a clash between the students' culture as computer users and the professional computing culture. We propose the concept of fertile zones of cultural encounter as a way of overcoming these learning difficulties. This pedagogical approach aims to bridge the gap between cultures by designing interventions that are appreciated by members of both cultures, yet also guide the student to engage in the practices of the professional culture. The learning difficulties are demonstrated by a detailed analysis of episodes taken from an advanced high school computer science course in concurrency. We show that fertile zones of cultural encounter can be successful in significantly improving learning of this subject.     

International education as a novel entity in a public education system: the establishment of a new public international school in Israel

Abstract

This study traces the founding process of Eastern Mediterranean International School (EMIS) by analysing the motivations and interests of different stakeholders involved in the establishment process. In this novel initiative students from Palestine, Israel, and other countries study within the Israeli public school system towards an International Baccalaureate (IB) diploma. Drawing on semi-structured interviews with founders, educators, Ministry of Education officials, a parents’ survey, and content analysis of related documents, the authors show how the school was established and approved despite the supposedly contradicting hegemonic discourse of the official Israeli policy. They conclude by suggesting some implications for scholars and policy-makers.     

Self-reported knowledge on literacy of Israeli speech-language pathologists and special education teachers

The promotion of literacy skills is considered a cornerstone in the work of special education teachers (SETs) and speech-language pathologists (SLPs). The present study examined the self-reported literacy knowledge of Israeli 67 SETs and 72 SLPs along three dimensions: development, assessment and intervention, and emergent literacy. Participants in both groups completed an individually delivered Likert-based survey. The main findings indicated positive correlations between development, assessment, and emergent literacy in both groups and no differences in their knowledge about emergent literacy. In contrast, SLPs reported lack of knowledge in literacy development, assessment and intervention, compared to SETs. The relationship between language modalities - reading, writing, oral language – seems to determine the role of each profession in literacy. Furthermore, the perception of written language as a modality or as a style of discourse was not conclusive in both groups. Therefore, policy makers and training programs should continue to deepen the training of professional staffs, especially by encouraging and training SLPs to address written language. Furthermore, the demarcation of the field of linguistic literacy of each profession is not evident in practice and needs to be discussed and coordinated to achieve true and optimal inter-professional cooperation.     

The effect of using a video clip presenting a contextual story on low-achieving students’ mathematical discourse

The question of how to enhance the learning of low-achieving students in mathematics presents an important challenge to researchers and teachers alike. We investigated whether and how the use of a contextual story presented in a video clip facilitated low-achieving students’ understanding of the meaning of fraction expansion. To this end, we (a) videotaped one group of three such students during a guided interaction session, (b) interviewed students and teachers about their first impressions of the use of the video clip, and (c) conducted pre–post-tests to examine the discourse students choose to employ to discuss expansion. Despite the interviewees’ impression that the use of the video clips makes it easier to remember the story, the analysis of the guided interaction session revealed that the students did not use it spontaneously when asked to explain why a fraction and its expanded form are equivalent. Rather, their explanations revolved around the expansion procedure. It was the tutor’s careful interventions in the discourse, building on the students’ recall of the story, which led to a synergy effect that facilitated the students’ understanding and articulation of the meaning of fraction expansion. This combination proved to be a potentially successful strategy in effectively promoting low-achieving students’ understanding in mathematics, as demonstrated in the students’ discourse and post-test performance. At the same time, our results highlight the delicate scaffolding required to achieve a beneficial effect.     

The global–local negotiation: between the official and the implemented history curriculum in Israeli classrooms

ABSTRACT

Globalisation and technological advances in the twenty-first century have caused a blurring of national lines, which in the past were the basis of a nearly indisputable model of civic identity. This process has led to a noticeable trend of the globally oriented pressures within the national curricula, on top of the existing locally oriented demands. By employing an interpretative, qualitative methodology, this study offers a multidimensional analysis of the tensions and power relations within the global–local nexus in history teaching. We reveal and discuss Israeli teachers’ perceptions and behaviours regarding the tension between the global and local inclinations within four major themes: teachers’ entrepreneurial performance, critical views of the existing curricula, the presence of Israeli–Palestinian conflict throughout teaching involvements, and the meaning the teachers attribute to Holocaust in their teaching. The context for this study is Israel: a developed OECD country locked into an intense and long-standing ethnic and political conflict. The tension between the ‘global’ and the ‘local’ in the Israeli education system, studied through the prism of teachers themselves, provides a thought-provoking case study.     

Analogy construction versus analogy solution, and their influence on transfer

This study compares transfer performed by subjects trained to solve verbal analogies, with transfer by subjects trained to construct them. The first group (n = 57) received instruction in a strategy to solve verbal analogies and the second group (n = 66) was trained in strategies for constructing such analogies.Before and after intervention, all subjects received three analogical tasks: verbal, figural and numerical. The success rate was measured by an effectiveness measure. Even though both interventions improved performance, the construction group scored higher results in the numerical and figural analogy tasks. Following Sternberg's “componential sub-theory of intelligence”, the constructors' advantage is attributed primarily to higher-level activation of the three significant metacomponents: problem recognition, strategy planning and supervision in task performance.