scholarly journals The mediation of hand-held geometrical instruments and dynamic geometry software in learning geometrical concepts in two cultural and education environments

2013 ◽  
Author(s):  
Dherar Banifaris
Keyword(s):  
Empirical Study ◽  
Activity Theory ◽  
Qualitative Data ◽  
Dynamic Geometry ◽  
Dynamic Geometry Software ◽  
Seventh Grade ◽  
Geometric Thinking ◽  
Educational Environments ◽  
Formal Concepts ◽  
Geometrical Concepts

This thesis "The mediation of hand-held geometric instruments and dynamic geometry software in learning the formal concepts of parallel and perpendicular lines in two cultural and educational environments" uses a theoretical framework derived from activity theory to investigate the effect of both geometric instruments (ruler, protractor, right triangle, pencil, paper) and dynamic geometric software (Geogebra4) in learning the formal concepts of parallel and perpendicular lines in fourth and seventh grade children from two different countries, Jordan and Greece.The qualitative data is relevant to an empirical study of a group of approximately 120 children from both countries Jordan and Greece. The participating children were subjected to lessons in geometry using the instruments tools (ruler…) and in using Geogebra4. They were then subjected to seven tasks in which they had to identify with justification, whether the lines on a plane in various figures are parallel, perpendicular or intersecting mediating the two different tools. The data was collected and analyzed according to Van Hiele's levels of geometric thinking.

scholarly journals On the Learning of geometric concepts using Dynamic Geometry Software

RENOTE ◽  
2004 ◽  
Vol 2 (1) ◽  
Author(s):  
Alex Sandro Gomes ◽  
Gerard Vergnaud
Keyword(s):  
Problem Solving ◽  
Dynamic Geometry ◽  
Theoretical Framework ◽  
Dynamic Geometry Software ◽  
Mediated Learning ◽  
Computer Mediated ◽  
Geometric Concepts ◽  
Geometrical Concepts ◽  
Geometry Learning

Many results on computer mediated geometry learning conclude about different heuristic approaches to problem solving with Dynamic Geometry Software (DGS). However, little is described concerning conceptualization process. We used a theoretical framework built upon constructivist foundations for analyzing mediated learning of specific geometrical concepts. Our point is illustrated in a case study in which we analyzed studentsí interaction with a DGS. Our results points to a clear mapping of potential conceptualization of geometry in software using.

Students' Independent Professional Activity in Pedagogical Practice

2010 ◽  
Vol 12 (2) ◽  
pp. 38-58
Author(s):  
Aina Strode
Keyword(s):  
Higher Education ◽  
Comparative Analysis ◽  
Empirical Study ◽  
Qualitative Data ◽  
Academic Staff ◽  
Professional Activity ◽  
Pedagogical Practice ◽  
Structured Interviews ◽  
Criteria And Indicators ◽  
Study Process

Students' Independent Professional Activity in Pedagogical PracticeThe topicality of the research is determined by the need for changes in higher education concerned with implementing the principles of sustainable education. The article focuses on teacher training, highlighting the teacher's profession as an attractive choice of one's career that permits to ensure the development of general and professional skills and an opportunity for new specialists to align with the labour market. The empirical study of students' understanding of their professional activity and of the conditions for its formation is conducted by applying structured interviews (of practice supervisors, students, academic staff); students and experts' questionnaire. Comparative analysis of quantitative and qualitative data and triangulation were used in case studies. As a result, a framework of pedagogical practice organisation has been created in order to form students' independent professional activity. The criteria and indicators of independent professional activity have been formulated and suggestions for designers of study programmes and organisers of the study process have been provided.

scholarly journals MENINGKATKAN KEMAMPUAN SPASIAL SISWA MELALUI PEMBELAJARAN GEOMETRI BERBANTUAN CABRI 3D

2017 ◽  
Vol 2 (2) ◽  
pp. 179-194
Author(s):  
Eline Yanty Putri Nasution
Keyword(s):  
High School Students ◽  
Spatial Ability ◽  
Direct Instruction ◽  
Junior High School ◽  
Teaching And Learning ◽  
Dynamic Geometry ◽  
Dynamic Geometry Software ◽  
Control Group ◽  
School Students ◽  
Ability Test

The purpose of this study are to investigate and to describe the gain of students‘ spatial ability through Geometry teaching and learning by using a dynamic geometry software, Cabri 3D. This study was a quasi experimental research with not equivalent control group design. Direct instruction was implemented in control group otherwise Geometry teaching and learning with using Cabri 3D was implemented in experimental group. The population of this study are all of the eight grade of junior high school students in one of the SMP Negeri in Padangsidimpuan City. The sample of this study were two groups of eighth grade. The sample has been choosed with using purposif sample technique. The instruments of this study were spatial ability test, quationere, observation sheet and interview. The test was analysed quantitatively and non test was analyzed qualitatively in order to answer the  the hypotesa, the gain of students’ spatial ability who has studied and lerant with using Cabri 3D is better than direct instruction.

scholarly journals Nature of metacognition in a dynamic geometry environment

2015 ◽  
Vol 3 (5) ◽  
pp. 627-646
Author(s):  
Ana Kuzle
Keyword(s):  
Problem Solving ◽  
Dynamic Geometry ◽  
Dynamic Geometry Software ◽  
Dynamic Geometry Environment ◽  
Mathematics Problem Solving ◽  
Managerial Decisions ◽  
Metacognitive Processes ◽  
Geometry Problem ◽  
Mathematics Problem

This case study examined the metacognitive processes of a preservice teacher when solving a nonroutine geometry problem in a dynamic geometry environment. The main purpose of the study was to uncover and investigate patterns of metacognitive processes and to understand what circumstances, situations, and interactions in a dynamic geometry environment promoted metacognitive behaviors. An adaptation of Schoenfeld’s (1981) model of episodes and executive decisions in mathematics problem solving, and the theory of instrumentation (Rabardel, 2001) was used to identify patterns of metacognitive processes in a dynamic geometry environment. During different phases of problem solving the participant engaged in different metacognitive behaviors whereas the dynamic geometry software supported strategies that are available and/or not available on paper and pen. The effectiveness of solution paths was dependent on the presence of managerial decisions, and well-orchestrated usage of different resources, both knowledge and technology. However, the results of the study call to question to which extent engagement in metacognitive behaviors is necessarily desirable or productive.

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