This research was conducted to determine the best approach to implement the assessment as learning in mathematics instruction. Assessment as learning is a classroom-based assessment that applies the principles of self-assessment by students on each of the instruction process. The main principle in the assessment as learning is that students know what they know and what they do not know. Based on both of these, students can improve their learning achievement independently with the teacher's guidance. There are two approaches taken in the application of this assessment in mathematics instruction namely: group assignments and individual assignments. Group assignment is a task assigned by the teacher to be done as a group, while the individualassignment is a task to be done individually. Each assignment consists of presenting and problem solving. The results showed that the presenting task that was done in groups results as the best learning activities, whereas the highest learning achievement was taken place when students work the problem solving individually. .
Benediktus Tanujaya (Sun,) studied this question.