Teachers’ Capacity of Instruction for Developing Higher – Order Thinking Skills for Upper Secondary Students – A Case Study in Teaching Mathematics in Vietnam

In the social model, in order to live and work in a complex and competitive environment of the 21st century, students must be well-equipped with such important skills and qualifications, of which creativity, critical thinking, communication and collaboration skills are very necessary for learners in the future. In this paper, the researcher aims to focus on teachers’ competency of instruction for developing higher-order thinking skills (creativity, critical thinking skills) through teaching and learning Mathematics in Vietnam.