Exploration of Problem-based Learning at Inter-course Level

Under the background of globalization and technology competition in the new era, aiming at the problem of traditional teaching interaction, this paper puts forward the idea of problem-based learning (PBL) teaching for environmental science majors. Compared with the traditional teaching method, the PBL model has advantages in improving students' self-learning ability, cooperation and communication ability, professional ability, being familiar with academic writing norms, and training critical thinking ability. Compared with the single-course PBL, the inter-course PBL model emphasizes the importance of systematic integration of professional knowledge when solving practical problems, and promotes teachers' extensive communication and cooperation.