In the process of mastery learning, there are many things that should be considered in order the designed activities can be run successfully. They are; 1) the specific teaching objectives and the selecting materials that are relevant and appropriate to the learning activity; 2) the teaching and learning approach that allows each individual can learn; 3) giving and the use of feedback and remedial; 4) setting standards for students’ mastery before proceeding to the next learning process; and 5) assessing learning achievement based on Benchmark Reference Assessment and not on Norm Reference Assessment