This research aims to find out how many fathers are involved in caring for early childhood children in the Surabaya area. The background of this research is to look at the phenomenon of fathers' lack of involvement in child care, resulting in some children behaving in fear, lacking self-confidence, speaking harshly, and not being able to control their emotions. This research is a quantitative descriptive research with a survey method. The subjects of this research were fathers who had young children in the Surabaya  sub-district area. Respondents in this study totaled 332 fathers. The research results show that as many as 84% ??of fathers have high involvement in their children's care in Surabaya  Village. However, based on the data, 42% of fathers are still busy with their activities when they are with their children and as many as 46% of fathers are still not close to their children, such as kissing and hugging their children. Therefore, it is necessary to provide training to fathers on how to care for early childhood children which includes aspects: Interaction, giving an example, accompanying, supervising, providing warmth and meeting the child's needs.
 

Project-based science learning with MELESAT content using loose parts is the choice as a learning model for young children to build new knowledge, with a scientific mindset children are getting to know Al-Khaliq, exploring new things, being creative, innovative, thinking out of the box, are adaptive to the environment, able to produce work and can develop and practice skills related to the real world. One way to learn science more constructively and meaningfully is through project-based learning that integrates MELESAT components using loose parts as open-ended play materials. Through continuous particSainstion in various play activities in the classroom and outside the classroom, children are actively involved in dialogue that is rich in scientific thinking patterns by utilizing complex and abstract scientific process skills such as observing, asking, observing, predicting, evaluating, and comparing. Discussions with children during the learning process about scientific thinking concepts related to mathematics, existence, literacy, engineering, science, art and technology merge with strengthening coaching by teachers for children during the learning process. The results of this research led to the conclusion that with the right teacher guidance, the learning process provides many opportunities for children to develop 21st century skills to prepare children for life in the future.