THE IMPLEMENTATION OF CONTEXTUAL TEACHING AND LEARNING (CTL) WITH MULTIMEDIA BASED ON COMPUTER TO IMPROVE COMMUNICATIVE AND INCREASE STUDENTS ACHIEVEMENT IN HYDROCARBON TOPIC

This research have objective (1) to increase student achievement taught with contextual teaching and learning ( CTL) is better than student achievement taught with direct instruction in hydrocarbon topic (2) to growth characteric of comunicative in learning with contextual teaching and learning (CTL) is better than learning with direct intruction. (3) to know the effectivity of student achievement taught by contextual teaching and learning (CTL) compare than student’s achievement taught by direct instruction.The population of this research were all student X grades at even semester in academic years 2013/2014 in SMAN 16 Medan, SMAN 1 Sunggal and MAS PAB 2 . Sample on this research were researched class in above school. The study then followed by pretest that was the preliminary evaluation before the teaching treatment being carried out. and then give treated Contextual Teaching Learning (CTL) in experimental class and Direct Instruction in control class. During learning process, observer observed student’s character. After that give postest as evaluation test. the data collected in this study are the students achievement (achievement scores) from evaluation test and student’s character of observation sheet. In pretest, average of pretest in experiment class is 36.11 and in control class is 39.11. In postest, in experiment class is 82 and in control class is 73.11. and the comparison based on gain of pretest and postest data of experiment and control is 71% and 55%, the effectivity is 22.53 % . So, student’s Achivement in class that teaching with Contextual Teaching Learning (CTL) is significant better than control class that teaching with Direct Instruction. For analyze data in Student Character (Soft Skill) is consist of 6 indicator using observer to observed students. And the percentage of experiment class is 67.80 % and in control class is 58.20 %