On Saturday 18th and Sunday 19th december 2021, the department of environmental science and technology faculty of science and technology Suansunandha rajabhat university by associate professor Siwaphan Chuin organized a training course "Environmental science and technology for high school students, class 3" the objective is to provide knowledge about science and technology in the environment for the participants. and is a proactive public relations course for student recruitment in the academic year 2022. This training is an online training in Google Meet format, with more than 50 high school students from various schools across the country applying to join the training. It has been well received by students participating in the program.