Abstract: One of important problems in teaching and learning Mathematics is how to teach Mathematics effectively and how students can apply the provided mathematical knowledge to
solve realistic problems. However, the mathematical knowledge that is taught for students in high schools still focuses on procedures and algorithms, and students have many difficulties in
transforming realistic problems into mathematical models that allow them to apply the equipped mathematical knowledge to solve them. The paper identifies students’ difficulties in integrating procedural and conceptual knowledge on quadratic equations to solve relevant realistic problems.
Keywords: Procedural knowledge, conceptual knowledge, realistic problem solving.