This study aims to determine how to improve mathematics learning outcomes by using the Discovery Learning learning model. This research is Classroom Action Research (CAR). This research was conducted in 2 cycles, namely, cycle 1 and cycle 2. The research was carried out at Vocational High School INFOKOM Bogor class XI Software Engineering (RPL) 1 with a total of 25 students, consisting of 17 male and 8 female students. In pre-cycle activities, the average score obtained by students was 59.4, with the number of students who completed 9 people (36%). In cycle 1 activities, the average value of students obtained increased to 70.6 with the number of students who completed increased to 14 people or by 56%. In cycle 2, the average score of students increased to 90.6, with the number of completed students increasing to 22 (88%). Referring to the results obtained in cycles 1 and 2, it can be concluded that the Discovery Learning learning model can improve mathematics learning outcomes in class XI Software Engineering 1 Vocational High School INFOKOM Bogor.
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