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Issue: Tập 23, Số 1 (2026)
Section: Articles
DOI: 10.54607/hcmue.js.23.1.4705(2026)
Date Published: 31/01/2026
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Ton, T. T., Le, V. K., Le, B. Q. C., & Le, T. N. (2026). EVALUATING THE APPROPRIATENESS OF DATA IN TEACHING STATISTICS AT THE LOWER SECONDARY SCHOOL LEVEL: ILLUSTRATIONS USING TWO GEOGEBRA MODELS. Ho Chi Minh City University of Education Journal of Science, 23(1), 176-188. https://doi.org/10.54607/hcmue.js.23.1.4705(2026)

EVALUATING THE APPROPRIATENESS OF DATA IN TEACHING STATISTICS AT THE LOWER SECONDARY SCHOOL LEVEL: ILLUSTRATIONS USING TWO GEOGEBRA MODELS

Ton That Tu1, , Le Vu Khoa2, Le Bui Quynh Chi1, Le Thanh Nhan1
1 The University of Danang – University of Science and Education, Vietnam
2 Trường Đại học Sư phạm – Đại học Đà Nẵng, Việt Nam

Main Article Content

Abstract

Statistics and Probability is one of the three core areas of knowledge in the 2018 General Education Curriculum for Mathematics, taught from grade 2 to grade 12, with concepts and skills progressing from basic to advanced levels. At the secondary school level, the focus of statistics is primarily on data collection, classification, and representation through tables and charts. Collecting data from various sources may affect the quality of the data, which in turn influences analysis and decision-making. Therefore, evaluating the appropriateness of data has become an important requirement, which is reflected in the curriculum's learning objectives. This paper analyzes the reasons for evaluating data appropriateness and the necessity of using assessment criteria, while also introducing some simple criteria suitable for the lower secondary level. In addition, two dynamic GeoGebra models and two teaching situations are developed to illustrate and support instruction.

Keywords

Statistics and Probability, Geogebra, Dynamic Models, Data Suitability Assessment, 2018 General Education Curriculum

Article Details

References

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