مجله پویش در آموزش علوم پایه
سال سوم شماره 3 (پیاپی 8، پاییز 1396)

Our assumption is based on studies that demonstrate the best methods taught are provided by the interference affecting the main sensory systems. Thus, individual learning is based on what he sees, hears and learns. To determine the effectiveness of education should consider the experiences of the senses, because it is a good feeling is what drives learning while learning to person gives. Present study was performance in two schools of city Malayer, in partnership with the computer and deputy secretary of the school's technology. 60 ninth-grade students participated in the study. Instruction during 10 weeks in two levels: unknown teacher online (UOT); in the absence of coach or teacher, and face to face with a teacher and coach (WELA) was performed. Participation and learning eventswere evaluated by using Graphpad prism software. Questionnaires and observations of the researchers were used to collect qualitative data. First, the dominant sensory systems in the two groups were determined by a questionnaire. Then, the learning of students from the two methods UOT and WELA were examined and compared. Studies showed that the sense of smell and hearing are dominant over the other senses. Also, student learning when used WELA is more effective and more motivated.

Late Dr. Gholam Hossein Mosahab, the honor of mathematics of Iran, has expressed that the primary pillar for any mathematical system is a kind of “equality” relation defined on that system applying this relation we can distinguish whether the objects in this system are distinct or not? The concept of equality is formed in the child’s mind since he starts to compare and correspond between two groups of the objects, one to one. This concept gradually improves by increasing information and child’s cognitive growth. In this way, sometimes there are challenges and paradoxes getting to know them, can be so useful for going through this way. This paper is the result of a library research and author’s educational experiences and it has been tried to investigate the most popular challenges of equality from preschool to undergraduate. This paper is the result of a library research and author’s educational experiences and it has been tried to investigate the most popular challenges of equality from preschool to undergraduate.

Considering an action in modified gravity, the static spherically symmetric solutions in vacuum are investigated. Introducing the Lagrangian multipliers α, we obtained the Lagrangian and equations of motion. For the constant Gauss-Bonnet invariant , the metric leads to de sitter solutions with and . Then for a large class of these models we obtain the exact solutions. Finally we study the thermodynamical quantities of these solutions. we obtain two type solutions for these models. The first case leads to Schwarzschild-de Sitter (anti de Sitter) solution and the other one, results in a new metric. The layout of the paper is the following. The action of gravity is considered and the field quations are derived, then the effect of modified gravity is considered as an effective stress-energy tensor. For the static spherically symmetric metric and using the method of Lagrangian multipliers to obtain the lagrangian and equations of motion is discussed. Then, the static spherically symmetric vacuum solutions for a large class of these metrics are investigated and the exact solutions are obtained.

Nanotechnology is one of the new technologies that opens its way in different industries and is widely used in various fields. In this article we have tried to introduce one of the most important sectors of the food industries which these materials are used in it and have many applications. At first we studied nano materials and their application in the packaging industry and then introduced a variety of packaging systems based on nano technology and the various types of nano materials used in packaging systems. The research results showed that these packaging systems were able to repair the package and inform the consumer of food corruption. The use of these packages prevents the contents from drying and protecting against moisture and oxygen and other hazardous materials; it can also be used to preserve food from corrosion by using nano materials. With the knowledge of nanotechnology's capabilities, it is hoped that the current packaging of food products will change and the Products supplied to the community according to the proper nutrition culture.

In mathematical education, as in other sciences, the ultimate goal is learning. Learning helps learners to solve the issues raised in the field of knowledge. There are many factors affecting for student learning, such as teaching a teacher. An appropriate and wise teaching occurs when the teacher is familiar with the mistakes and misunderstandings in the subject of teaching and can manage his teaching so that the probability of making these mistakes and misunderstandings in the students is reduced. The misunderstanding is that the student did not understand the story or misunderstood.In fact, these errors are due to inaccuracy or neglect of activity and have deeper roots. One of the most difficult concepts of school mathematics at all levels of education is fraction. A large number of students are misunderstood in solving fractional issues. The purpose of this paper is to identify the common misunderstandings of students in solving some fractional issues and propose a step-by-step teaching method for their elimination