Critical thinking skills refer to the ability to analyze assumptions, distinguish hidden values, evaluate evidence, and assess conclusions. This study aims to develop students' critical thinking skills by implementing the Susan Loucks-Horsley (SLH) learning model. The type of research conducted is pre-experimental with a one-shot case study design. The research was carried out in the 2020 Science Education Study Program, Class A, at Hasyim Asy’ari University, with a total sample of 33 students. The subject matter in this study was light reflection. Data collection was conducted using essay tests based on critical thinking skill indicators. Based on data analysis, it can be concluded that the students' average critical thinking ability was 85%, categorized as very high, with 22 students in the very high category and 11 students in the high category. The average mastery of critical thinking indicators also fell into the very high category, with the following details: elementary clarification (96%), the basis for decisions (82%), inference (75%), advanced clarification (89%), and supposition and integration (83%).

Early Childhood Education (PAUD) has a crucial role in shaping children's character and basic knowledge, including in terms of environmental awareness. On the other hand, many families in Indonesia are facing economic challenges that require intervention to improve their well-being. This research aims to develop environment-based social entrepreneurship as a tool for family empowerment through early childhood education. Environment-based social entrepreneurship not only aims to create profitable businesses, but also to support the sustainability of nature, thus having a positive impact on both the family economy and environmental conservation. Through literature research, it was found that the integration of social entrepreneurship with early childhood education can provide dual benefits: increasing environmental awareness in children and empowering parents with eco-friendly entrepreneurial skills that can increase family income. Collaboration between educational institutions, the government, and the community is also considered very important to ensure the successful implementation of this program.

Abstract. Environment is everything that affects human growthand animals. While the environment is everything that being around living things (organisms) that have reciprocal effects on living things. Effort environmental preservation means maintaining the existence of the environment forever, everlasting and unchanging. By doing actions arbitrarily to the environment by exploiting regardless of the consequences, clearly contrary to Christian teachings Instability of natural conditions, disasters and calamities that occur in nature, because it is caused by human hands. Management This environment aims to achieve harmonious relations between humans and the environment. inner harmony Christian teachings include four things, namely: harmony with God, harmony with society, harmony with the natural environment and harmony with oneself. Efforts to preserve the environment alive, this received serious attention from the shepherd. written in the bible about reviving dead land, planting trees (reforestation) and the contents of the bible about the prohibition of open defecation. Messages written in God's word, are awakening to his people to always increase awareness of the environment.