Edy Surya

An Analysis of Spatial Ability and Self-efficacy of Students in Cooperative Learning by Using Jigsaw at Smas Muhammadiyah 8 Kisaran

The study aims at analyzing students spatial ability and self-efficacy by using Cooperative learning Jigsaw type, including (1) students’ thinking process on spatial ability (2) students self efficacy after learning process using jigsaw type of cooperative learning (3) students’ active participation level in learning process. Subjects of the study are 38 students of X-IPA2 of SMAS Muhammadiyah 8 and its objects are students’ spatial ability, self-efficacy and active participation. The current study is a qualitative-descriptive study. The instrumentations used are spatial ability test, self efficacy questionnaires, students’ activities observation sheet and interview guideline. The data is analyzed by using Miles-Huberman Model. Based on the data collected, students’ thinking processes on spatial ability after learning by using Jigsaw type of Cooperative learning are classified into high, medium, and low. (1) Students with high spatial ability have orderly, neat and abstractly thinking skill in completing spatial ability test. Students with medium/intermediate spatial ability level have orderly thinking process and semi abstract ability in solving spatial ability test. Students with low spatial ability level in understanding the problems have uncompleted thinking process, do not have ability to concentrate, semi abstract thinking, cannot find alternative in solving the problems and have un orderly and poor thinking process. (2) Self-efficacy of students of SMAS Kisaran 8 after learning by using Jigsaw type of cooperative learning is good. (3) Whole percentage of students’ active participation in teaching learning process is at tolerance interval of the ideal time set.

The Efforts to Improving the Mathematical Critical Thinking Student’s Ability through Problem Solving Learning Strategy by Using Macromedia Flash

This study aims to determine whether the application of problem solving learning strategy by using macromedia flash can improve student’s critical thinking skills on the subject two variables of linear equation (SPLDV) at class 8th Junior High School) that attended by 25 students. Data obtained from tests analyzed using descriptive statistics with five absolute scales, while data from the observation analyzed by percentage of the total aspects observed. The results showed that the critical thinking ability of students is improved. Indicated by the results of the achievement of the minimum criteria quite well in the first cycle by 40%. In the second cycle amounted to 60% in the third cycle increased to 80%.The results of the observation of teacher ability to manage by problem solving learning strategies by using macromedia flash on the first cycle get 66.4%, so it has not fulfilled the ability of teachers in the classical style 75% in the second cycle and the third cycle reached 87,5%.So that it meets the expected categories according to the benchmark.