INTEGRATING MATHEMATICS AND ECONOMICS WITH THE SUPPORT OF GEOGEBRA SOFTWARE IN TEACHING THE SYSTEM OF FIRST-ORDER INEQUALITIES WITH TWO UNKNOWNS AT THE HIGH SCHOOL LEVEL

The 2018 General Education Curriculum has introduced numerous innovative teaching methods including integrated teaching. Within the context of integrated teaching, interdisciplinary integration is among the teaching methods that have drawn significant attention. Meanwhile, the content of the system of first-order inequalities with two unknowns is a crucial topic in mathematics, potentially enhancing the integrated teaching methods. This study introduces a new teaching approach that integrates interdisciplinary teaching of mathematics and economics with the support of GeoGebra software in teaching the system of first order inequalities with two unknowns at the high school level. Building on existing research on integrated teaching, the research team employs both theoretical and practical research methods to develop a teaching approach tailored to the current educational context in Vietnam. The research has identified two approaches for exploiting, providing the teaching process as well as outlining methods to organize interdisciplinary teaching of mathematics and economics through economics problems about the system of first-order inequalities with two unknowns. The research focus of the article represents a significant contribution to enhancing the quality of teaching and learning.