Edi Syahputra

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.

Improving the Ability of Creative Thinking Mathematically and Self-Confidence Student through Application Model Eliciting Activities (MEAs) Review from Student Gender

The purpose of this research was to determine: improving the ability of mathematical and self-confidence of students of class X of SMA Negeri 1 Barus taught by Model Eliciting Activities (MEAs), and to view whether there was interaction between learning with students gender to the ability ofCreative Thinking Mathematically and student self-confidence. This type of research was a quasi-experiment research. The population in this study was all students of SMA Negeri 1 Barus. The sample in this research were 32 students of X-1 class as experiment class and 32 students of class X-2 as control class through purposive sampling method.The data in this research were analyzed by using ANAVA 2 Path. The validation result on the test of creative thinking ability got the significance value 0,82, meanwhile the test reliability value got the result 0,87. The results obtained: (1) Increased ability of creative thinking mathematically and self-confidence of students who gained learning Eliciting Activities Model (MEAs) was higher than the ability to think creatively mathematically and self-confidence students who obtained conventional learning; (2) There was no interaction between learning and gender of students towards the improvement of the ability of creative thinking mathematically and student self-confidence.

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.

Model-Eliciting Activities Approach as a Tool to Improve Creative Thinking Skills and Self-Confidence

The Model-Eliciting Activities (MEAs) approach is a reality-based approach, works in small groups and presents a model to help students build problem solving and get students to apply an understanding of the mathematical concepts which they have learned. The main adventages of MEAs to develop student’s thinking then students can create their own models to solve mathematical problems. The purpose of this study is to test influence of the MEAs learning approach on student’s craetive thinking skills and self-confidence. This study is a quasiexperimental research using pre-test and post-test control group design. The data in this research were analyzed using Two Ways ANOVA using SPSS 17.0 for windows. Results of Two Ways ANOVA shows that the MEAs approach has significant value gained 0.000 and 0.012 which are less than 0.05. This means that H0 refused and H1 accepted so there is influence of MEAs approach on creative thinking skills and self-confidence. Keywords—creative thinking skills, self-confidence, MEAs