In a previous publication we examined the connections between high-school computer science (CS) and computing higher education. The results were promising -- students who were exposed to computing in high school were more likely to take one of the computing disciplines. However, these correlations were not necessarily causal. Possibly those…

Reduction is one of the key techniques used for problem-solving in computer science. In particular, in the theory of computation and complexity (TCC), mapping and polynomial reductions are used for analysis of decidability and computational complexity of problems, including the core concept of NP-completeness. Reduction is a highly abstract…

The gap between enrollments in higher education computing programs and the high-tech industry's demands is widely reported, and is especially prominent for women. Increasing the availability of computer science education in high school is one of the strategies suggested in order to address this gap. We look at the connection between exposure to…

This article tells a story of K-12 computer science in two different countries. These two countries differ profoundly in culture, language, government and state structure, and in their education systems. Despite these differences, however, they share the pursuit of excellence and high standards in K-12 education. In Israel, curriculum is…

Non-determinism is one of the most important, yet abstract, recurring concepts of Computer Science. It plays an important role in Computer Science areas such as formal language theory, computability theory, distributed computing, and operating systems. We conducted a series of studies on the perception of non-determinism. In the current research,…

Computer science is possibly one of the few remaining disciplines almost entirely dominated by men, especially university staff and in the hi-tech industries. This phenomenon prevails throughout the western world; in Israel it starts in high school, where only 30% of students who choose to take computer science as an elective are women, and…

The implementation of a new computer science (CS) curriculum in high schools which includes all the basic elements of traditional CS programs, motivated a research to determine how students conceive the very fundamental notion of efficiency. Since this was the first time that algorithm efficiency was integrated into a high school curriculum, our…

Nondeterminism is an essential concept in mathematics and one of the important concepts in computer science. It is also among the most abstract ones. Thus, many students find it difficult to cope with. In this article, we describe some didactic considerations, which guided the development of a "Computational Models" course for high school…

Solving problems by reduction is an important issue in mathematics and science education in general (both in high school and in college or university) and particularly in computer science education. Developing reductive thinking patterns is an important goal in any scientific discipline, yet reduction is not an easy subject to cope with. Still,…

This paper discusses the role of reduction in computer science and describes a study on undergraduate students' perception of the concept of reduction. Specifically, based on an analysis of students answers to questions addressing different computer science topics, we present several findings regarding the ways in which undergraduate students…

Describes a study conducted on the attitudes of students towards the integration of the Web as a channel of communication and a study tool in traditional distance teaching of Computer Science (CS) at the Open University of Israel. Results of questionnaires show the Web cannot substitute entirely for face-to-face learning. (Author/LRW)

Realizing the importance of teaching efficiency at early stages of the program of study in computer science (CS) on one hand, and the difficulties encountered when introducing this concept on the other, we advocate a different didactic approach in the introductory CS course (CS1). This paper describes the approach as it is used at the Open…

The development of new communication technologies and their applications has opened a broad spectrum of options to promote learning, of which a significant one is CMC--Computer-Mediated Communication. Yet, students use this medium to a relatively small extent. Our premise is that the use of these technologies depends on the level of skills and…

Shows by means of a mathematical example how algorithmic thinking and mathematical thinking complement each other. An algorithmic approach can lead to questions that deepen the understanding of mathematics material. (DDR)

Presents an outline for a computer science instructional program for inservice or prospective teachers, based on a high school computer science curriculum. Describes three courses that include an introduction to the basics of computing, an overview of the computer science field, and selected topics in computer science teaching. (AEF)