The purpose of this study is to analyze the applicability of the conceptional growth learning
of mathematical misconceptions and errors. An attempt has been made to change and develop
the students\' self-diagnosis and their misconceptions through several error-remedial
teaching-learning methods, which have been designed for this study. For the current research,
a case study of students\' misconceptions on the learning of linear function, using a qualitative
analysis with learning activity of conceptual growth has been conducted. Through a process of
conceptional growth learning, it has been discovered that misconceptions can be developed into
new mathematical concepts or new ideas as a result of learning activities of conceptual growth.
Learning activities of conceptual growth consist of attention retention, focus activity, action, and
reflection. In this process, students use a list of questions for self-regulated learning. For the
current study, a list of questions that enriches students\' hypercognitive system has been
developed by the researcher.
The results of the study confirm the cognitive psychological base which indicate that students
replace misconception with the correct concept, revise errors, develop mathematical knowledge
from their prior conceptions by themselves, and inquire into new mathematical concepts.
Research on students\' mathematical misconceptions is very important for improving
mathematical teaching methodology.