The paper presents the requirements for the design and use of the PowerPoint presentation in teaching nature and society. The PowerPoint presentation is a teaching medium made on a computer programme ...consisting of a digital print, photos and sound, of graphic parts, animations and video materials. The paper presents the requirements and the ways of designing and using a good presentation in teaching nature and science.
Graphic organizers are visual models enabling teachers and students to efficiently organize, understand and apply information. This paper presents the specific characteristics and advantages of using ...graphic organizers in science teaching, as well as the results of testing their efficiency in the teaching process. For this purpose different kinds of organizers, their purposefulness and efficiency as well as their applicability at different teaching stages have been described. The basic purpose is to stimulate the development of students’ competences with a special emphasis on the development of analytical abilities, of a deeper understanding and of higher cognitive levels of thought.
The paper presents the advantages of making and using mind maps in teaching natural and social science in comparison with the traditional linear notation. Mind maps – as a special radial way of ...noting down thoughts, ideas, and messages by means of key words, figures and colours – facilitate learning, the application of knowledge in practice, and the creativity of pupils. We have presented the way of an efficient mapping – making of mind maps manually and by means of a computer. Owing to the structure of the instruction of natural and social sciences, mind maps are especially efficient for a hands-on demonstration of stimulating assignments, understanding of the new teaching material and a positive effect on the efficiency of teaching.
Successful implementation of scientific and technological development of the Republic of Croatia is possible only through the improvement of the application of science to everyday life. Numerous ...educational values found in the history of science and in the development of its methods could be capitalised on as early as in the teaching of initial science curriculum.
The holistic approach to teaching sciences and social sciences seeks to reflect the unity of the phenomena at school, parental home, native region and country in accordance with the prevailing scientific and technological revolution in education, STS (Science-Technology-Society) philosophy, which requires integration and overlapping of natural and social sciences and of technology. Modernizing the teaching of science means not only introducing new scientific knowledge/content into the teaching, but also introducing methods of scientific research.
Requirements to try and use the original real world scientific approach through: making hypotheses, observations, research, critical assessment and verification are specially highlighted to be used in the initial teaching of sciences. Pupils compare the results of their work to the results of other research participants. In that way the spirit of cooperation is created and communication skills are enhanced. Such type of work entails a certain degree of courage and of modesty in judging one’s own contribution to the solution of the problem researched.
The basic teaching strategy is based on individual learning which enables the development of capabilities and provides training for self-education for life in the ‘learning society’. Organisation of the whole educational system stimulates pupils to be creative.
Combined class departments consist of two or more grades in which one teacher gives instruction in the same classroom at the same time. Combinations of lower, neighbouring grades (the first and the ...second; the third and the fourth) have got certain advantages over combinations of alternate grades (the first and the third; the second and the fourth). For the work in combined classes it is necessary to provide better conditions. The structure of the instruction in combined class departments is very difficult because the teacher must distribute his teaching work equally on all classes in the combination, which demands the preparation of separate tasks both for direct and indirect teaching. One of the working solutions in combined classes is the shift-and-a-half work, for which teachers should be additionally paid.
The fundamental task of evaluating the achievement in the teaching activities is the systematic raising of the level and quality of instruction. Through the evaluation of the achievement of students, ...their progress is determined in relation to their abilities and possibilities. It is determined by means of a system of monitoring (through a constant insight into the course of the instruction), testing (by gathering documents about the realization of the task of instruction), measuring (objective assessment of the results of instruction), appraising and grading (determining student’s achievement on the value scale) of teaching activities of students and teachers in the social and natural science instruction.
In the preparation for the instruction in Natural and Social Science we distinguish: preparation at the beginning of the school year (annual, orientational, global preparation) and the preparation ...during the school year (extraordinary – thematic and immediate preparation). Within the annual preparation we distinguish: planning – anticipation of the teaching time needed for the implementation and programming of the programme – approximate layout of the teaching contents. We make the annual curriculum on the basis of the prescribed curriculum, regional contents, and the school work programme.
The implemental – thematic curriculum contains articulated teaching wholes, themes broken down to the teaching units. In it we envisage key concepts, educational achievements, teaching media – sources of knowledge, practical works, out-of-the class instruction, as well as material and aids for the instruction. In the immediate preparation for instruction we distinguish setting of the conception and making of written methodical precepts for the teaching activity. We can make methodical precepts as a thorough written preparation for the teaching activity, or as a sketch for the teaching activity.
In practice we find different techniques for the preparation of instruction. Every teacher chooses the way of preparation that allows a full development of his personal abilities and inclinations. Pupils should be involved in all forms of teaching preparation starting from the annual through the implemental – thematic – to the immediate preparation according to their age and abilities. Every teaching activity, including the preparation for teaching, should be analysed, judged and evaluated in order to assess the value of methodical procedures and improve the instruction.
Upbringing and education for the environment and sustainable development is realised in our schools as a teaching princip/e. ln this paper the interest is directed to the upbringing and education for ...the environment and viable development as well as to the endeavour to realise its modern tendencies in our schools.
The paper also analyses the tasks of upbringing and education for the environment and sustainable development in pre-school education, primary and secondary school upbringing and education, as well as the contents of the teaching subjects important for the realisation of upbringing and education for the environment and sustainable development in regular instruction. Attention is drawn to the abundance of extracurricular and out-ofschool activities of the young that allow a holistic, interdisciplinary approach to the problems of upbringing and education in order to increase its efficiency in our schools
U Republici Hrvatskoj se ekologijski odgoj i odgoj za zaštitu okoliša ostvaruje kao nastavno načelo. U ovom je radu interes usmjeren na ekologijsko obrazovanje, odgoj i kulturu te nastojanje da se ...suvremene tendencije odgoja za zaštitu okoliša ostvaruju u našim školama.
Raščlanjene su zadaće odgoja i obrazovanja u predškolskom odgoju, osnovnom i srednjem odgoju i obrazovanju te sadržaji nastavnih predmeta relevantnih za ostvarivanje ekologijskog odgoja i odgoja za zaštitu okoliša u redovnoj nastavi. Bogatstvo izvannastavnih i izvanškolskih aktivnosti omogućuje da se problemima ekologijskog odgoja i odgoja za zaštitu okoliša pristupi interdisciplinarno, kako bi se on uspješno ostvario u našim školama.
Magnetite superparamagnetic nanoparticles (MNP) are becoming one of the firsts nanocommodity products. MNP find a number of applications and they are been produced at relatively large scale. The ...co-precipitation method presents many technical and economical advantages among alternative processes. However, the relationships between physical and chemical reaction conditions during the co-precipitation process and the resulting properties of obtained MNP are not yet fully understood. The novelty of this contribution is the establishment of the cross-dependency effects of the main physical and chemical parameters of the co-precipitation reaction on the properties of resulting MNP. The conditions were varied by following an experimental design. The crystallite size, particle size and magnetization of the MNP and the Z-potential and size of their aggregates were selected as main response properties. A set of equations in the form of 4D surface responses in the space of co-precipitation process variables was obtained and analyzed in terms of the resulting properties. The set of equations is useful to predict, optimize and tailor very precisely the properties of resulting MNP as a function of reaction conditions.