Abstract
The teacher must plan the lesson by using different teaching approaches/methods/techniques for meaningful learning. This study aims to determine the teaching strategies of experienced chemistry teachers about solutions and the factors that affect the application of these strategies in the teaching environment. The case study method was used and the study group consists of four chemistry teachers. Research data were obtained from scenarios, interviews, and lesson observations. According to the results of the research, the teachers stated that they knew the teaching strategies through a presentation, invention, and research, and they could use visuals or models such as video/picture/animation, experimentation, or project preparation methods while applying them. However, as a result of the lesson observations, it was observed that the teachers used the strategy of presentation in their lessons, and only one teacher additionally used teaching through discovery. The teachers enumerated the reasons for this difference as follows: deficiencies in the field knowledge and pedagogical knowledge, laboratory-related deficiencies and overcrowded classes, lack of technical support for technological problems, intensive curriculum and short course periods, low student motivation, and school-family demand for exam-oriented studies.