Educational Technology Psychology
E. Reyhani; F. Hamidi; F. Rashedi
Abstract
Understanding negative numbers and doing operations on them is one of the fundamental subjects in mathematics that students face many problems when they encounter them at school. One of the problems that leads to very serious learning difficulties in mathematics is those misconceptions students may have ...
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Understanding negative numbers and doing operations on them is one of the fundamental subjects in mathematics that students face many problems when they encounter them at school. One of the problems that leads to very serious learning difficulties in mathematics is those misconceptions students may have from previous inadequate teaching, informal thinking, or poor remembrance. Recognition of misconception and the origins that create them in the fields and at different levels of education, can improve learning. Misunderstanding in this study is incomplete or incorrect interpretation of a concept that cause systematic errors in the performance. This study investigates the student’s understanding and misconception of negative numbers. Descriptive statistics, survey, is used as a method of this study. The population of the study is all second level students of guidance school in the academic year 1391-92 and all the seventh level students of Darmian town in the academic year 1392-93. 443 students in second level of guidance school and 55 students in seventh level were chosen as a sample of the study based on cluster random sampling. A self-designed questionnaire by the researcher is used as the instrument for the study, the questionnaire was based on “Bofferding” and “Kilhamn” questionnaire. Results showed that most of the students don’t have a true understanding of negative numbers in school and face problems in applying their knowledge to solve mathematical problems. Also the results of the current study showed that some of the students consider "-" as a reducing operator and some consider "+" as an increasing operator.
Education technology -training course
E. Reyhani; M. Sedighi
Abstract
The present study was done to examine the role of mathematic anxiety on mathematic performance of high school students. Math anxiety is a factor that can affect performance in math. This anxiety is influenced by personal and environmental factors، cultural factors and gender roles too. In this research ...
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The present study was done to examine the role of mathematic anxiety on mathematic performance of high school students. Math anxiety is a factor that can affect performance in math. This anxiety is influenced by personal and environmental factors، cultural factors and gender roles too. In this research the effect of this factor son performance in math was assessed. The research method had a correlation design which is categorized in descriptive research. The participants of this study were 300 high school students who were studying in Damghan city high schools in 1389-1390. 150 male high school students and 150 females were selected randomly as sample. The subjects completed the math anxiety Scale (Chiu & Henry، 1990).This scale has four dimensions (mathematics anxiety، learning، problem solving، teacher). Findings showed that among components related to mathematic anxiety، just learning anxiety of mathematic could predict the students’ performance. But there was no difference between male and female students mathematic anxiety.
competency of teachers
E. Reyhani; S.M. Emam jome; B. Saleh Sedghpour; A. Moradi
Abstract
The purpose of this study is to assess the mathematics teachers’ knowledge of geometry based on Van Hiele Model of Geometric Thought. 38 pre-service and 12 in-service mathematics teachers participated in this study. In this research, a test was devised according to Van Hiele Model. T-test with ...
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The purpose of this study is to assess the mathematics teachers’ knowledge of geometry based on Van Hiele Model of Geometric Thought. 38 pre-service and 12 in-service mathematics teachers participated in this study. In this research, a test was devised according to Van Hiele Model. T-test with was deployed in order to analyze data. The research method is causal-comparative method. Finding show that the participants have passed through third level of thinking but have not achieved fourth level of thinking. While researches indicate that teachers should at least acquire the fourth level of thinking. Hence the geometric course in the current program for preparing mathematics teachers, have not offered sufficient professional knowledge for pre-service and in-service mathematics teachers.
science education
E. Reyhani
Abstract
Euclidean geometry has been taught to students in schools for many years. Topological structures are among the topics that have not received much attention in school geometry. The knot is one of the most suitable topics for teaching in school, which has a topological structure. In addition to being rooted ...
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Euclidean geometry has been taught to students in schools for many years. Topological structures are among the topics that have not received much attention in school geometry. The knot is one of the most suitable topics for teaching in school, which has a topological structure. In addition to being rooted in human culture and experience, knots are a theoretical and practical field in mathematics, physics, biology, and chemistry. In this article, after a brief acquaintance with the nodes, an explanation for the title "Geometry of nodes" is given. In the first part of the article, in the first part, the reasons and analyzes for the selection of nodes and the importance of teaching it in school are explained, and in the second part, a proposed plan for teaching knot geometry to students is briefly presented. Experimental implementation of this project, in which one group of elementary school students and the other group including students from the third year of middle school and the first year of high school participated, has had satisfactory initial results.
