مجله پویش در آموزش علوم پایه
سال هشتم شماره 2 (پیاپی 27، تابستان 1401)

The spread of the corona in the world has affected many things and disrupted the way of life. In our country, due to the lack of necessary preparation to face this disease, education was disrupted for a while and suffered the most damage. With the onset of the Corona crisis, various countries quickly shut down face-to-face training and moved on to virtual education in order to comply with health protocols to combat the disease as much as possible. Schools, universities, and academic institutions around the world used a variety of methods to advance their education. Some distance learning software and platforms are on the agenda of these institutions and teachers and professors with different teaching methods, provide the necessary training to their learners. In the field of e-learning, different countries face different problems in which many factors are involved that hinder the advancement of education. In this article, we have tried to point out the various methods that have been used and tested in various scientific institutes, as well as to discuss the problems and difficulties facing this type of teaching.

This article aims at clearing the usual misconceptions about weightlessness and strengthening the foundations of the concept of gravity in a layman’s language. This project is for readers who don’t even have a background of high level physics. Not all of us are well versed with the language of mathematics and hence is sparingly used in this paper In the concept of weight and weightlessness are poorly misconceptions. It is seen that notion of weightlessness would mainly spacecraft free falling or elevator in the mind. But the issue is that is the object in this case really weightless? in this paper there is an attempt to survey and analyze the concept of weightlessness Especially in the Spacecraft. In this work the first is review preliminary concepts of motion, acceleration, mass, weight, inertial frameworks and non-inertial frameworks in connection with this issue and final using these concepts and the scientific method the weightlessness dynamics has been investigated.

In recent years, one of the new educational approaches in the field of integration of subjects is the educational approach. STEM teaching method is based on real applications of science, technology, engineering and mathematics education. The aim of this study was to evaluate the effectiveness of STEM physics education on tenth grade experimental students in Neishabour. For this purpose, a sample of 50 tenth grade students, 25 students in the control group and 25 students in the experimental group were randomly selected and answered the researcher-made test of academic achievement in pre-test and post-test. In the meantime, the experimental group received STEM-based training in volume and density issues in the tenth grade. The obtained data were analyzed using analysis of covariance and Spss software. The results showed that STEM physics training is more effective than traditional training. (P˂0.05). Also, the results of sub-tests showed that STEM physics training is significantly different from the traditional method in terms of comprehension and application, and this method has been more effective. (P˂0.05).

The quantum theory of information, due to its use of specific quantum properties such as entanglement, has shown, in some cases, advantages over the classical information theory. For a clear-cut understanding of entanglement one needs a deep knowledge of its production and its control in various environments. In this regard, different solid state systems such as nanodots have been proposed to explore such properties of entanglement. Our goal in this article is thus to study the conditions under which one may explore entanglement as tools for information analysis and processing. In particular, we consider the behavior of quantum hybrid entangled statesin a two-dimensional anisotropic nanodot. The motivation behind investigating the hybrid entanglement is the well- established fact that this novel species is least sensitive to the environmental fluctuations. Consequently, in the present article we report the dynamics of electronic spin–subbands, hybrid entanglements in a two-dimensional anisotropic nanodots made of InGaAs/GaAs. Our calculations show that information is periodically distributed between the corresponding subspaces. Effects of Rashba parameter and magnetic field on the characteristics of such oscillatory behavior are also discussed. In short, the above points provides novel means of controlling the electronic states entanglement produced in an anisotropic nanodot.

This study aimed to investigate the misconceptions of ninth-grade students about chemical bonds. The research was a survey. The statistical population included all ninth-grade students of Robat Karim city who were studying in 1401-1400, from which 200 students (100 girls and 100 boys) were selected by random sampling. The instrument was a researcher-made questionnaire consisting of 17 multi-choice questions related to the chemical bonds of the ninth-grade textbook. Two chemistry faculty members of Farhangian University and two science teachers who taught in the ninth grade confirmed the validity of the questionnaire. The obtained reliability of the questionnaire using Cronbach's alpha method was 0.75. The questionnaire was categorized into the concept of chemical bonding, ionic bonding, and covalent bonding. Data were analyzed using SPSS26 software. Results showed that the most misconceptions were related to the lack of understanding of the formation of ionic and covalent bonds. The results of one-way ANOVA analysis showed that in terms of combining dependent variables between girls and boys in independent variables including the concept of chemical bonding (Ƞ2=0.000, p> 0.05, F =8.489), ionic bonding (Ƞ2= 0.000, p> 0.05, F =0.082) and covalent bond (Ƞ2= 0.000, p> 0.05, F =0.367) there is no significant difference.

In this article, the mathematical laboratory is defined and the necessity of its formation is examined. The main purpose of this article is to determine which categories of mathematical problems can be studied in the mathematical laboratory and which categories do not need to be expressed in the laboratory. Laboratory problems are presented in the high school and general mathematics levels of the university. Finally, the advantages and disadvantages of setting up a math lab are summarized. In this article, the mathematical laboratory is defined and the necessity of its formation is examined. The main purpose of this article is to determine which categories of mathematical problems can be studied in the mathematical laboratory and which categories do not need to be expressed in the laboratory. Laboratory problems are presented in the high school and general mathematics levels of the university. Finally, the advantages and disadvantages of setting up a math lab are summarized.