This study aims to determine the implementation of authentic portfolio assessment in science learning. This research is descriptive qualitative. Methods used for data collection include observation, interviews, and documentation. Data reduction, data presentation, and data verification are theoretical techniques used in data analysis by Miles and Huberman. The results showed that the implementation of authentic portfolio assessment in science learning has gone well, this is in accordance with the authentic portfolio steps, if it is in accordance with the authentic portfolio steps, then the implementation of the authentic portfolio has gone well.

Aqidah Akhlak education is one of the fields of religious studies that plays an important role in education. Aqidah morals are taught not only to know and understand what is contained in the lesson of aqidah morals itself. But aqidah morals are taught with the aim of making students knowledgeable, have aqidah and have a noble character. So that it is illustrated how far the behavior of students in learning in class towards Aqidah Akhlak subjects. This study used quantitative methods with the sample of this study were students of class V at MIN 4 Langsa, totaling 32 students. Data collection techniques using observation, interviews and questionnaires. The results showed that there was an influence between Aqidah Akhlak education on student behavior in class learning. The magnitude of the influence between Aqidah Akhlak education on student behavior in class at MIN 4 Langsa is 60.3%, while the remaining 37.9% is influenced by other factors which are not the focus of this study. Based on the results of the F test calculation, the Fhit value is 17.1831 with a significance of 0.00026 <0.05 so that H0 is rejected and Ha is accepted, which means that there is a simultaneous influence on the Aqidah Akhlak Education (X) variable on student behavior in class learning. (Y).Keywords: Aqidah Akhlak Education, and Student Behavior