International Journal of Science and Applied Science: Conference Series P-ISSN: 2549-4635 Int. J. Sci. Appl. Sci.: Conf. Ser., Vol. 4 No. 1 (2020) E-ISSN: 2549-4627 Current research in Pandemic Covid-19 Era in Indonesia - 2nd ICOSETH 2020 doi: 10.20961/ijsascs.v4i1.49454 9 Teacher Professionalism, Teacher Monitoring in Learning from Home, Parental Participation, and Android-Assisted Learning as Predictors of Students Achievement in COVID-19 Pandemic Donald Samuel Slamet Santosa, Retnowati, Slameto President University, Indonesia dsamuel@president.ac.id Abstract. During the COVID-19 pandemic, the Indonesian government implements open and distance learning (ODL) for K-12 until December 2020. Home learning is demanded to have similar quality to learning at school. One indicator of the quality of learning is students achievement. Based on a systems approach, this study sought to find predictors of students’ achievement through ODL in which teacher professionalism (input), android-assisted learning, learning monitoring by the teacher, and parental participation (process) were the predictors of students’ learning outcomes (output). The data sources of this study were obtained from 102 teachers of 487 members of Slameto facebook accounts; data netted with a questionnaire of 24 items that were valid and reliable. To analyze the data, the researchers used the Step Wise Model Regression technique assisted by SPSS for Windows version 25. The results showed that teacher professionalism was the main determinant of students’ achievement with a contribution of 31.30% (model 1); when it was accompanied by monitoring of learning by the teacher, it increased to 37.90% (model 2), and when it was accompanied by parental participation, it gained 43.60% contribution (model 3). This study emphasizes the need for a management model based on parental participation in improving the quality of learning from home (ODL). Keywords: Parental Participation, Students Achievement, Covid-19 1. Introduction During COVID-19, Indonesian Government implements open and distance learning- based on ICT for K-12 until December 2020. Technology is an important component of human – culture agency that provides ‘tools’ of technology, techniques, and proced ures in which along with them various groups and communities learn about, give responses, take actions, and manage their experiences in the world [1]. The use of information technology and communication (ITC) has significant potential in providing access to, and improving the quality of, education [2]. Ref. [2] reports that the use of IT may improve knowledge of teachers and enhance knowledge of subjects, enable more efficient teaching planning and preparation, develop the existing teacher pedagogical practices which at the end increases teacher professionalism. ICT-based learning that is well prepared and implemented by professional teachers gives many positive evidences. How can it do so?