EFEKTIVITAS BAHAN AJAR PROBLEM SOLVING BERBASIS OPEN- ENDED DALAM PEMBELAJARAN MATEMATIKA UNTUK MENGEMBANGKAN KEMAMPUAN PENALARAN MAHASISWA PGSD

Abstract

This study focuses to see the effectiveness of the use of teaching materials based
on open-ended problem solving, a research that had resulted from the previous year as a
continuation of the study of research and development (R & D). The preliminary studies
and the development of teaching materials were carried out in the first year. In the
second year it would be the evaluation phase to see the effectiveness of the trial use of
teaching materials. To view this effectiveness the researcher would evaluate the increase
in reasoning abilities of the students, activity of lecture, activity of students in the
learning and teaching materials, students response to problem solving based on openended

question. The samples in this study were taken from two units of lectures on
Study Program Primary School Teacher (PGSD) Almuslim University. Each unit would
be subject to different actions, where the unit got learning with teaching materials based
on open-ended problem solving and other units without the use of the teaching
materials. Based on the result of the study, some conclusions were found, including; (1)
there is a difference between the increase in reasoning abilities of students studying
teaching materials based on the open-ended problem solving with students wo studied
without using the teaching materials; (2) In general, the activity of students and
lecturers were observed in the study by using teaching materials based on the open-
ended problem solving in both categories; (3) Based on questionnaire student response
towards learning mathematics by using teaching materials based open ended problem
solving is very positive. Thus it can be stated that the teaching materials based on the
open-ended problem solving were very effective to be applied to the study of
mathematics at the Almuslim University PGSD Department to increase students
reasoning skills.

Keywords: Problem Solving Teaching Material Based Open-Ended, Attitude Students,
Lecturers and Students Activities, and Mathematical Reasoning Ability