This research aims to describe the validity of practicality and the effectivity of learning instruments for biodiversity conservation concepts using a troubleshooting learning model to increase the student learning result of grade VII SMPN 21 Banjarmasin. The study was conducted in two stages: (1) The first phase entailed developing a device following an Assure design, and (2) The second phase involved the implementation of a learning device at a class by using the one-group pretest-posttest design. A quantitative descriptive analysis technique and qualitative descriptive evaluation were done on the data collected. The result of this research shown that a device that was developed was valid, practical, and effective. Valid can be seen from the validator judgment to RPP, LKS, teaching materials, knowledge learning result judgment instrument, attitude, psychomotor, and interpretational skills. Effectiveness of the intervention was demonstrated by increased knowledge acquisition, individual completeness, psychomotor learning result completeness. The primary limitation of the study was the lack of time to guide the students to experiment and teach the sain skill process. However, the results of the study show that the troubleshooting model was a valid, practical, and effective method that could be used to improve the students’ learning result and train the sciences skill process. The troubleshooting model was a valid, practical, and effective method that could be used to improve the students’ learning result and train the sains skill process. Key words: Conservation of biodiversity; biology; learning result; learning outcomes; troubleshooting.