The study reports the evaluation and analysis of the implementation of the Nature Environment Exploration approach in the Department of Biology, Universitas Negeri Semarang State University. The method used was survey method. The results showed that the implementation of the Nature Environment Exploration approach was still far from optimal results determined in the indicators within learning preparation, implementation of the process of learning, and assessment of learning outcomes, even to the level of understanding of lecturers in implementing the approach in the classroom. The implementation of JAS approach was needed a model of teaching, one of which is Experiential Nature Environment Exploration (EJAS).