The Increasing of Student‘s Mathematics Problem Solving Ability and Learning Motivation Through Problem Based Learning Model

The goals of this research was to analyze: (1) the increasing of students mathematics problem solving ability among students taught by problem based learning method and students taught by conventional method. (2)t he increasing of students learning motivation among students taught by problem based learning method and students taught by conventional method, (3) interaction between learning approach with initial knowledge to the increasing of mathematics problem solving ability, (4) interaction between learning approach with initial
knowledge to the increasing of students learning motivation. This research was quasi experiment. The population of this research was students of grade VIII MTs Al-Washliyah 31 Tanjung Beringin. Randomly, there were two class as the sample of research, namely class VIII-2 as experimental class with problems based learning approach and class VIII-3 as control class with conventional method. The instruments of this research
were: test of mathematics problems solving ability,
questionnaire of students learning motivation and observation sheet. The instrument was content valid, the reliability 0,823 and 0,8012 for mathematics problem solving ability and questionnaire of students learning motivation. The data analyzing of mathematics problem solving ability using ANAVA-two way, and the questionnaire of students learning motivation with Mann-Whitney test. The result of the research shown that (1) the increasing of mathematics problem solving ability and students motivation taught by problem based learning better that conventional method, (2) there weren’t
interaction among learning approach with students initial
knowledge to the increasing of student mathematics problem solving ability and learning motivation