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Çontay, Emine Gaye; Duatepe-Paksu, Asuman – Acta Didactica Napocensia, 2019

This is a descriptive study which attempts to answer how well 8th grade students define a rectangle. The subjects for this study were 93 of 8 th grade students. The students were administered a written open ended test on the definition of a rectangle which was adapted from Ahuja (1996). Responses of the students were coded by each researcher…

Descriptors: Geometry, Grade 8, Mathematics Instruction, Definitions

Alves, Francisco Regis Vieira; Barros, Francisco Evamar – Acta Didactica Napocensia, 2019

The study and interest of figurate numbers can be observed even in ancient Greece. On the other hand, it becomes very important the historical understanding about an evolutionary process and the particular generalization of such 2D, 3D and m-D figurate numbers and they remain the interest of current scientific investigations. On the other hand, in…

Descriptors: Mathematics Instruction, Visualization, Educational Technology, Computer Software

Alves, Francisco Regis Vieira – Acta Didactica Napocensia, 2016

Admittedly, the study of Complex Analysis (CA) requires of the student considerable mental effort characterized by the mobilization of a related thought to the complex mathematical concepts. Thus, with the aid of the dynamic system Geogebra, we discuss in this paper a particular concept in CA. In fact, the notion of winding number v[f(gamma),P] =…

Descriptors: Mathematical Concepts, Concept Teaching, Geometric Concepts, Geometry

Alves, Francisco Regis Vieira – Acta Didactica Napocensia, 2015

We find several applications of the Dynamic System Geogebra--DSG related predominantly to the basic mathematical concepts at the context of the learning and teaching in Brasil. However, all these works were developed in the basic level of Mathematics. On the other hand, we discuss and explore, with DSG's help, some applications of the polynomial's…

Descriptors: Teaching Methods, Educational Technology, Computer Software, Computer Uses in Education

Florian, Gabriel; Trocaru, Sorin; Florian, Aurelia-Daniela; Bâna, Alexandru-Dumitru – Acta Didactica Napocensia, 2015

The aim of the present article is to focus on the operational aspects referring to the actions--strategies and on the defined modalities of establishing educational objectives/competences. In the achievement of our work a special attention has been paid to the operational aspects of the learning process of the optical phenomena. There were carried…

Descriptors: Geometric Concepts, Geometry, Optics, Creative Activities

Rumanová, Lucia; Smiešková, Edita – Acta Didactica Napocensia, 2015

In this paper we focus on creativity needed for geometric tasks designing, visualization of geometric problems and use of ICT. We present some examples of various problems related to tessellations. Altogether 21 students--pre-service teachers participated in our activity within a geometry course at CPU in Nitra, Slovakia. Our attempt was to…

Descriptors: Creativity, Mathematics Instruction, Geometry, Geometric Concepts

Gortcheva, Iordanka – Acta Didactica Napocensia, 2013

Two problems from high school mathematics on finding minimum or maximum are discussed. The focus is on students' approaches and difficulties in identifying a correct solution and how dynamic geometry systems can help.

Descriptors: Geometry, Problem Solving, High School Students, Secondary School Mathematics

Viewing the Roots of Polynomial Functions in Complex Variable: The Use of Geogebra and the CAS Maple

Alves, Francisco Regis Vieira – Acta Didactica Napocensia, 2013

Admittedly, the Fundamental Theorem of Calculus-TFA holds an important role in the Complex Analysis-CA, as well as in other mathematical branches. In this article, we bring a discussion about the TFA, the Rouché's theorem and the winding number with the intention to analyze the roots of a polynomial equation. We propose also a description for a…

Descriptors: Mathematics Instruction, Algebra, Mathematical Concepts, Geometry

Binterová, Helena; Komínková, Olga – Acta Didactica Napocensia, 2013

The main purpose of the work is to present a successful implementation of CLIL method in Mathematics lessons in elementary schools. Nowadays at all types of schools (elementary schools, high schools and universities) all over the world every school subject tends to be taught in a foreign language. In 2003, a document called Action plan for…

Descriptors: Computer Uses in Education, Elementary School Science, Elementary School Mathematics, Curriculum Implementation

Radakovic, Davorka; Herceg, Dorde – Acta Didactica Napocensia, 2013

Dynamic geometry software (DGS) is often used for development of interactive teaching materials in many subjects, not only mathematics. These interactive materials can contain hundreds of elements in order to represent complex objects, and script programs to control their behavior. We propose an approach for creating, importing and using…

Descriptors: Educational Games, Mathematics Instruction, Instructional Materials, Geometry

Karaibryamov, Samet; Tsareva, Bistra; Zlatanov, Boyan – Acta Didactica Napocensia, 2012

This work acquaints with the program Sam for interactive computer training of students on the theme "Mutual intersecting of pyramids and prisms in axonometry". The program containing three modules--teacher, student and autopilot--allows for briefest time to teach and study the whole variety of the tasks on this theme. A classification of…

Descriptors: Educational Technology, Computer Software, Courseware, Geometry

Kuzle, Ana – Acta Didactica Napocensia, 2012

In this paper, I report on preservice teachers' reflections and perceptions on their problem-solving process in a technological context. The purpose of the study was to investigate how preservice teachers experience working individually in a dynamic geometry environment and how these experiences affect their own mathematical activity when…

Descriptors: Student Teacher Attitudes, Preservice Teachers, Problem Solving, Geometry

Richter-Gebert, Jürgen; Kortenkamp, Ulrich – Acta Didactica Napocensia, 2010

In this article we demonstrate how the combination of a system for dynamic geometry with a freely programmable scripting environment can be advantageously used in teaching and research. We explain the reasons behind various design decisions that were made by us when designing the language "CindyScript" and give examples that proof how…

Descriptors: Geometry, Programming Languages, Programming, Teaching Methods

Stahl, Gerry; Çakir, Murat Perit; Weimar, Stephen; Weusijana, Baba Kofi; Ou, Jimmy Xiantong – Acta Didactica Napocensia, 2010

The Math Forum is an online resource center for pre-algebra, algebra, geometry and pre-calculus. Its Virtual Math Teams (VMT) service provides an integrated web-based environment for small teams of people to discuss math and to work collaboratively on math problems or explore interesting mathematical micro-worlds together. The VMT Project studies…

Descriptors: Algebra, Geometry, Calculus, Web Based Instruction

Marchis, Iuliana – Acta Didactica Napocensia, 2009

Symmetry is one of the fundamental concepts in Geometry. It is a Mathematical concept, which can be very well connected with Art and Ethnography. The aim of the article is to show how to link the geometrical concept symmetry with interculturality. For this mosaics from different countries are used.

Descriptors: Fundamental Concepts, Geometry, Geometric Concepts, Mathematics Education