International Journal of Education and Practice 2311-6897 2310-3868 10.18488/journal.61.2019.74.479.493 International Journal of Education and Practice The Influence of Government Policy, Principle Leadership, and Participation of Parents on Strengthening Teacher Organizations (KKG/MGMP) and Development of Problem Solving in Students: Indonesia Case International Journal of Education and Practice International Journal of Education and Practice 04-2019 2019 04-2019 04-2019 7 4 479 493 12 Sep 2019 21 Nov 2019 This study aims to determine the effect of government policy, school principal leadership, and parental participation on the strengthening of KKG/MGMP teacher organizations and developing students' problem solving abilities. This paper is part of a field study on KKG (elementary school) and MGMP (Junior/senior high school) in DKI Jakarta, Indonesia, with a total sample of 120 teachers. Data collection was carried out using questionnaire techniques, interviews, and conducting focus group discussions (FGD). The distribution of questionnaires to test the relationship between variables was analyzed with the help of the LISREL 8.80 program. The results showed that the three exogenous latent variables had a positive influence on the endogenous latent variables in the strengthening of the KKG/MGMP teacher organization, reinforcing that the teacher organization had a positive influence in developing students' problem solving ability. The influence of parental participation had a considerable effect and it made an important contribution in supporting teachers to participate in KKG/MGMP activities. It is recommended that the government revoke the regulations on prohibiting schools from collecting funding from parents, in order to let the school design school improvement programs with strict supervision and control to prevent deviations.