The STEM learning approach, which integrates science, technology, engineering, and mathematics disciplines, is increasing its popularity in all countries. Countries are trying to ensure that students develop their cognitive, affective, and scientific process skills by integrating the STEM learning approach into their education systems. In this context, it is considered important to prepare course contents suitable for the STEM learning to approach within the scope of the curriculum, and design-based activities are included. It is thought that the number of guide applications on how teachers can use the STEM learning approach in their lessons to teach their subjects by following per under the STEM learning approach is insufficient. In this study, the literature was searched using the traditional compilation method, and a lesson content suitable for the STEM learning approach was produced by blending my smart greenhouse activity, which was developed for the 7th-grade environmental education lesson outcomes, with the 5E teaching model. It is aimed to increase the diversity of guide resources that teachers can use in their lessons by giving the produced course content together with the application stages.