Abstract Name : Mirza Adia Nova Student’s No : 0606102050001 Study Program : English Education Title : The Effectiveness of Team Teaching to Improve Students’ Ability in Understanding Reading Text at SD Teuku Nyak Arief Fatih Bilingual School Darussalam. The quality of teachers in the learning process will determine the effectiveness of learning programs. This research is intended to know whether at SD Teuku Nyak Arief Fatih Bilingual School has implemented the procedure model of Team Teaching and to know the student’s ability in understanding reading skill; word meaning of vocabulary and detail. This research is a descriptive research. The populations of this research are three classes, there are 1st, 2nd, and 3rd grade that implemented this method. The writer chose the 3rd grade as the sample in this research, they are 43 students. Data collection was gathered from observation and test. The result of test show that the mean score (X ̅) is 85, 7 while the KKM is 75 and the mean lies in range 85 – 94. It means that the students’ achievement in comprehending detail and vocabulary deal with noun, adjective, and verb is categorized as “very good”.