Learning obstacles analysis of Indonesian high school students on geometric sequence.

This study aims to obtain an overview of the obstacles and learning obstacles of Indonesian high school students on the problem of geometric sequences. The research used descriptive qualitative. Data of the research was obtained from the results of test and interviews given to fifty students from one of the senior high-school in West Java. The test is given consists of four questions related to problem of geometric sequence. The answer to the questions were confirmed again by clinical interview. These data are analyzed based on the framework of learning obstacles to the students answer. The obstacles obtained through the test of questions include students still having difficulty in determining the sequence, ratio, the value of the nth term, and the number of the nth term. The results showed that there are still many students who experience learning obstacles on learning geometric sequences. Learning obstacles that occurs includes ontogenic obstacles, epistemological obstacle and didactical obstacles. [ABSTRACT FROM AUTHOR]