USING GEOGEBRA SOFTWARE IN MODEL DESIGN AND THE ORGANIZATION OF DISCOVERY-BASED TEACHING ON THE TOPIC OF STATISTICAL ELEMENTS (SELECTING CHARTS FOR DATA REPRESENTATION) FOR GRADE 8 STUDENTS

USING GEOGEBRA SOFTWARE IN MODEL DESIGN AND THE ORGANIZATION OF DISCOVERY-BASED TEACHING ON THE TOPIC OF STATISTICAL ELEMENTS (SELECTING CHARTS FOR DATA REPRESENTATION) FOR GRADE 8 STUDENTS

Nguyen Viet Duong duongnv@phd.hcmue.edu.vn Ho Chi Minh City University of Education 280 An Dương Vương, Ward 4, District 5, Ho Chi Minh City, Vietnam
Pham Huyen Trang* phamhuyentrang@hpu2.edu.vn Ha Noi Pedagogical University 2 32 Nguyen Van Linh, Phuc Yen city, Vinh Phuc province, Vietnam
Summary: 
In the modern era of information technology, numerous software tools have emerged to support teachers in facilitating discoverybased teaching in mathematics. Among these, GeoGebra stands out as a dynamic mathematics software offering several notable advantages, including intuitive visualization, data representation, result prediction, object tracing and manipulation, mathematical experiment simulation, and spreadsheet integration. Leveraging these features enables the development of instructional models tailored to specific pedagogical needs. This study explores the capabilities of GeoGebra as a dynamic mathematics software (DMS) in designing instructional models and implementing discovery-based teaching of statistical concepts for eighth-grade students. It outlines key theoretical perspectives, presents a structured model design process, and proposes instructional strategies aimed at enhancing students’ cognitive development and active engagement in mathematics learning. We hope that the research findings, along with the developed dynamic mathematical tools, will serve as effective resources for teachers in delivering high-quality instruction in statistics and fostering students’ interest and motivation in learning mathematics.
Keywords: 
discovery-based teaching
GeoGebra software
Model
statistical chart
grade 8.
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