مجله پویش در آموزش علوم پایه
سال پنجم شماره 4 (پیاپی 17، زمستان 1398)

The purpose of study was to investigate the effect of virtual education on the learning the biology in 11th grade girl students in Delgan city . The statistical population of the study consisted of all female students of the eleventh grade of the field of experimental sciences in the city and included 108 students, among them two classrooms were selected in a total of 61 individuals as a statistical sample. The research was quasi-experimental with pre-test and post-test with two groups of control and control. The control group was trained in the traditional way and the experimental group by virtual methods. The level of learning was studied using a researcher-made educational achievement test and descriptive and inferential statistics were used to analyze the data. The findings showed that the variables of knowledge level, conceptual understanding and the ability to analyze the concepts of the production topic of the biology lesson, the mean post test scores increased significantly in the experimental group compared to the pretest, but in the control group, not seen. it can be concluded from this research that experimental intervention has led to an increase in the production of the topic of biology in the experimental group.

The purpose of this study was to compare the content of first grade math textbooks in US, California, Japan, and Iran. Research on textbook analysis is very valuable because educational content comes directly from the overall goals of the system and the goals of a discipline at any level. This research has been done in the quantitative paradigm by William Roman quantitative content analysis. The study population included first grade math textbooks of three US states (California), Japan, and Iran in 1977-98. The results show that the index of learner engagement in the pictures and graphs of the first grade math textbooks of the three US states (California), Japan and Iran are 0.8, 1.71 and 13, respectively. Primary American Mathematics First Grade, more successful in engaging students in mathematics subjects (0.4% <18), and Japanese Primary Grade Mathematics makes students think more (71/71). 1 <1) and the first grade elementary mathematics book of Iran is more than the learners' mental ability at this age, which confuses the learners and consequently leads to a backward performance in the learning process. Including marginal and non-textual content in this book will impede learners' desirable thinking (13 <1).

Problem-solving is one of the most important pillars of mathematics education and as one of the most important goals of mathematics education at school, it is of great interest to teachers and practitioners. Problem-solving skills in mathematics are among the most important skills of learners. Some learners become frustrated with math problems due to their lack of familiarity with problem-solving skills, but teaching students problem-solving strategies can help students with problem-solving skills. , Improve and give them more motivation to learn math and make them more empowered in this lesson. Therefore, strategies that enhance students' problem-solving ability in mathematics should be taken into consideration by educators, and this Teach them strategies. This article describes some of these strategies and discusses five strategies: brainstorming, concept mapping, meta-cognition, and KWDL strategies that are effective strategies to improve problem-solving ability, and the benefits of each. We explain the strategies and how they are implemented in the classroom.

Dye-sensitized solar cells (DSSCs), have received considerable attention due to low cost and easy fabrication process. The photoanode is composed of a wide-bandgap semiconductor that is photosensitized by an organic dye . The dye molecules absorb sunlight in the visible range and thereby the electrons excite from the HOMO (highest occupied molecular orbital) level to the LUMO (lowest unoccupied molecular orbital) level. The excited electrons inject to the conduction band of the semiconductor and move through the semiconductor to the back contact. Zinc Oxide nano structures are one of the most widely used materials in the fabrication and synthesis of solar cells. The feature of these nano structures are highly dependent on the conditions of synthesis and fabrication process. In this paper, we have produced two ZnO structures, microsphere and nanosheets-microsphere structures, by changing the pH of the growth solution by wet chemical method. We have shown that the existance of the nanosheets in second structure leads to considerable increase in dye-loading and thereby, increment in light harvesting and efficiency of dye-sensitized solar cells.

The purpose of this paper is to assess the content of the sixth grade basic mathematical book in terms of regard to the cognitive levels of bloom, the importance to creativity through conformity with the creativity factors of gilford, mental skills and determining the active content index according to William Roman technique. This research was conducted using content analysis method and the statistical population is the sixth elementary Math book. A randommethod was selected for analysis, The tools of this research are researcher-made content analysis forms according tothe analysis patterns. The findings of this research show that the content in terms of attention to the cognitive domains of bloom more attention to the perceived perception and understanding, in terms of content implementation based on the mental factors of Gilford, convergent thinking of more attention to divergent thinking, in terms of content implementation based on mental skills, more than the definition of the concept The reposted and in terms of matching text and image content based on William Roman technique, inactive text and images with 0.35 conflict coefficient are also disabled. Also, the index of activity-driven involvement of the book with a coefficient of 0.55 showed that the book is activity-centric.

Most students are unprepared for the idea and application of creativity in learning difficult and unfamiliar concepts of science. Design thinking is based on creative methods. Gets used to thinking of designing the mind to engage with any subject and to see everything as a problem. Therefore, in this method new models of mind are taught to learners which in a constructivist environment can be very useful for developing their creativity and learning their lessons. The present study presents a model for applying learners' creativity in applying crystal lattice-related concepts by outlining five stages of design thinking.