Learning Obstacles on Linear Equation concept in Junior High school Students: Analysis of Intellectual Need of DNR-Based Instructions M T Bakar, D Suryadi , and D Darhim
Universitas Pendidikan Indonesia
Abstract
The purpose of this study was analysis the learning obstacle by students in solving the problems of linear equations system based on students intellectual need. Two problems about linear equations was given to two students of 8th Grade as subjects who had the same initial mathematical abilities. The data collection was using the test of mathematical concept comprehension, and interview with subjects. Interviews was conducted by asking open-ended questions related to the mathematical concept comprehension test that they had been working on. This data were transcribed then analysis in depth to see the learning obstacle and intellectual need. This research finally finds three types of learning obstacle students related to intellectual need. These learning obstacle are ontogenic obstacle, epistemological obstacle, and didactical obstacle. Ontogenic obstacles are where students didnt have of basic mathematical knowledge. Epistemological obstacles were where students couldnt translate problems into mathematical models, miscalculate and also couldnt provide an explanation of the answers obtained. This indicates that the students did not have need for certainty, need for causality, need for computation, need for communication, and need for structure. Didactical obstacle occurs when the teachers are unable to create learning that accommodates the intellectual need of students.
Keywords: learning obstacle, intelectual need, concept analisys
