The purpose of this paper is to describe the training process of the primary school teacher professionalism development scheme to be able to develop an interactive worksheet based on a mobile learning environment for elementary school students. This study used a descriptive study to present the result of the questionnaire and process of the training. The subject of this study were 39 teachers from Malang City, Indonesia that were involved in that training. The data analysis used descriptive analysis as a tool to present the result. This study used several steps to describe the training process: planning, implementation, and evaluation. Based on the result, the level of ability from the first day was 100%, while the second day reached 79% and the third and fourth days by 64%. In general, almost all participants are cooperative when carrying out synchronic activities through zoom meetings. The discussion about the strength and the drawback of this training is discussed further.