Mathematics open-ended problem-solving ability in junior high school.

The problem-solving ability of open-ended mathematics students in Indonesia is still very low. Teachers more often assume students have the same ability, so students are often given training questions with closed problem nature. This needs to be changed by eliminating old habits and providing open-ended based exercises. The purpose of this article is three. Describes students' problem-solving skills in 1) plan problem solving, 2) implement a problem-solving plan, and 3) re-examine the results of problem-solving solutions. Type of qualitative-phenomenological research. Data collection techniques are tests in the form of questions, documentation, and interviews. The analysis technique used is data triangulation. The results of the study, 1) 9 students or 45% of the number of students can solve problems up to the stage of planning problem solving, 2) 10 or 50% of students can solve problems up to implement problem solving planning, and 3) 1 student or 5% of the number of students can solve problems up to the stage of re-checking. [ABSTRACT FROM AUTHOR]