The objective of this research was to developing of scientific advances of liquid lens use the concept STEM education. The samples of this research were 40 grade 11 students at Ratanaratbumrung School. In this research, students can learn about the liquid lens by demonstrations and design the experimental apparatus for study a contact angle, a focal length and a magnification of the lens witch STEM education is a curriculum based on the idea of educating students in four specific disciplines science, technology, engineering and mathematics. The measurement and evaluation is the test by scanning QR-code from Google Form program. This research found that the class average normalized gain was high gain and the learner can design base for placing this glass slide on the camera of a mobile phone, this will enhance the imaging ability of the camera to similar to an optical microscope. Furthermore, this research can integrated scientific knowledge of lens to solving problem in daily life.
Keywords: Liquid Lens, STEM Education