: This study was aimed to describe senior high school students' metacognitive awareness and metacognitive knowledge. Metacognitive awareness is the students' potential while metacognitive knowledge is the actual conditions that exist on the students. The study was a survey followed by a limited experiment. The survey was conducted in senior high schools, state senior high schools, and Isamic senior high schools in Bogor and South Jakarta. The sample consisted of 204 students. The limited experiment was carried out in the tenth grade of SMA Peminatan IPA in state senior high schools in South Jakarta involving 71 students. The findings showed that the students ‘ metacognitive awareness was at the range between 75-83 or in the good category while the students' metacognitive knowledge was at the range between 10-15 or in the very poor category. The process standard offered by the 2013 curriculum has not been able to attract students to the idea level, that is, the metacognitive knowledge and the metacognitive awareness was of equal level.