The COVID-19 pandemic makes it difficult for the teaching and learning process to be conducted freely using all learning modes due to the limited interaction between teachers and students by distance. Therefore, teachers must creatively utilize various learning models to ensure students are properly taught during the pandemic. In this regard, this study aims to elaborate on the relationship between training management, effectiveness, and its impact on the teaching creativity of public teachers from kindergarten to upper secondary level. This is an online quantitative survey with a sample of state-funded teachers consisting of civil, honorary, and contract teachers. These three types of teachers were included in the category of teachers of the State Civil Apparatus. The accidental sampling technique was used to obtain data from 405 respondents through the questionnaire distribution for a month. This was greater than the initial target of 200 people as a condition for the eligibility of the number of respondents when using structural equation modeling (SEM)—AMOS analysis. A total of four hypotheses were proposed in this study, with three accepted and one rejected. The result showed that training management contributed significantly to training effectiveness but had a minimal contribution to increasing teachers teaching creativity during the pandemic. Furthermore, training effectiveness had a significant contribution to the invention of teaching teachers and was a full mediator. This study also found the lack of references about management training and the relationships built. Proper management is a key factor in encouraging the effectiveness of activity, but it is unable to improve the creativity of teaching teachers directly. The role of training effectiveness was significant because it increases the contribution of training management to teacher teaching creativity. This research also showed that the training carried out on ASN only be successful with good management. The effectiveness of teachers teaching creativity can only be increased through training, especially during a pandemic.