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• Live & Learn: When a wrong program works

  195-208

  Tibor Gregorics

  Views:

  96

  In this paper an interesting and surprising case study of my programming education practice is presented. This case underlines the importance of methods, standards and rules of thumb of the programming process. These elements of the programming technology can be taught well in education and they can guarantee the quality of the implemented programs. However the case described in this paper brings an anomaly when a programming standard is violated during the programming process and, although it should imply that the implemented program code works badly, the program works perfectly. This anomaly is caused by a typical implementation problem: the boundary and rules of the machine representation of numbers. This anomaly is going to be analyzed and the appropriate conclusions of our case study will be deducted.

• Organizing programming contests

  73-99

  Bence Golda

  Views:

  80

  This paper aims to summarize my experience in organizing programming contests. It is an overview of those questions that should be raised and decisions that should be made by organizers, teachers and computer system administrators, who participate "on the other side" of such events.

• Lehre der Trigonometrie anhand realistischer Aufgaben im Online-Unterricht

  87-105

  Kornélia Ficzere

  Ágota Figula

  Carolin Hannusch

  Emese Kása

  Views:

  180

  The aim of our study was to explore the effects of the active use of realistic exercises in the field of trigonometry. We taught a group of 14 pupils, who were in grade 11. The most of them told us they did not plan mathematics-related studies in the future. We included realistic exercises into our teaching plan, which covered the fields of scalar product, as well as the sine and cosine theorems. Our teaching experiment was done within the framework of online teaching. Effects on the motivation, performance and results of the students were taken into consideration. We also attempted to examine the effects of online teaching on motivation and whether the use of realistic exercises is worthwhile in an online classroom environment. Performance of the students showed a tendency of improvement when they were dealing with the material through realistic exercises even despite the teaching happened online.

  Subject Classification: 97C70, 97D40, 97G60

• Normalization based on dependency diagram

  121-132

  Márta Czenky

  Views:

  106

  Normalization is an important database planning method, although the understanding and application of this method brings up the utmost problem during data modelling. That is why we were looking for alternative normalization methods, from which the normalization with dependency diagram proved to be the most efficient. This was also confirmed by the statistical estimation of the carried out survey.

• Experiences using CAS and multimedia int teaching vectorcalculus

  363-382

  Ildikó Perjési-Hámori

  Views:

  70

  The development of informatics brings new opportunities that need reevaluating of the teaching concepts. For this reason we have performed a comprehensive educational development for engineering students. Our main goals were to work out a new educational strategy, to develop the needed package of the subject material, to introduce the strategy in the practice, to analyze and evaluate the experiences. In the developed and adapted teaching-learning strategy the teacher is the organizer, designer and the manager of the process. In this paper we summarize the concepts, the results and experiences of the 3-years-long development.

• The influence of computer on examining trigonometric functions

  111-123

  Djurdjica Takači

  Radivoje Stojković

  Jasminka Radovanović

  Views:

  103

  In this paper the influence of computer on examining trigonometric functions was analyzed throughout the results questionnaire. The students, as usual, had to examine two trigonometric functions, both were given with the appropriate instructions. Three groups were tested. Two of those three groups were prepared with the help of computer and the third one was taught without computer. From the analysis of the questionnaire it follows that the computer has a great influence on understanding of the connections between the graph and very complex calculations.

• Our digital education habits in the light of their environmental impact: the role of green computing in education

  69-86

  Réka Racsko

  Ede Mátyás Troll

  Views:

  229

  With the increasing use of IT tools, the environmental impacts they generate have also increased. Education is increasingly relying on digital tools to become a major emitter of CO2 itself. Therefore, the task of education is to teach future generations how to use IT tools efficiently while being environmentally aware. In addition to some forms of green computing, we show the level and ratio of those teachers who have corresponding IT knowledge in the Hungarian education. In this study, we present the justification of the problem through a case study, which estimates the Internet traffic of a website streaming popular educational resources. In addition, we will examine the extent to which national and international educational organization and guidance documents address the development of digital environmentally aware thinking. Based on the content of this study, we suggest some considerations for content developers to decide if they really need to create the digital content.

  Subject Classification: 97P99, 94-06, 94-02