earticle

영어

The purpose of this study is to show how the 3rd graders at middle school understand the definition of function that they already learnt at school and to find out what the misconception that students obtain about the definition of function in the expression of functional graph and algebra. Also, it suggests the difference in the ability of solving problems according to the representation method by investigating and analyzing after presenting the quadratic function as a form on
graphical table and symbolic table. The qualitative research method was used on 5 students to perform the study by interviewing them before they solve the questions. The result of the study tells that students tend to see the definition of function as systematic rule or equations and they think the function should be expressed by one certain rule or equation. Also, they think the functional graph should be systematic.