The purpose of the study was to investigate the effects of incorporating the ProjectBased
Learning (PBL) with STEM activity (Science, Technology, Engineering and
Mathematics) for senior high school students. It attempted to explore the effects of the
PBL on students’ academic performance and performance of learning process.The
project of “Cup Speaker” was designed for this study. There were 40 students from
National Pingtung Girls Senior High School and 44 students from National Nei-Pu
Agricultural-Industrial Senior Vocational High School in Taiwan. The competition of
creativity design for the “Cup Speaker” was carried out for four weeks. The STEM
activity was incorporated with PBL strategy and websites. In addition, the researcher
played a role of tutor in this project to help solve students’ problems. Content analysis
was adopted to analyze students’ projects and learning processes of STEM websites
followed by questionnaire and interview to explore students’ learning satisfaction. The
major findings of the study were: 1. students from different educational systems
demonstrate different characteristics of works; 2. DIY is the most critical design factor
of STEM in PBL; 3. technology is discussed the most, whereas mathematics is
discussed the least on the forum of the website; and 4. “teaching material design of
STEM activity” is the most significant factor of students’ learning satisfaction.
Keywords: STEM, Project-Based Learning (PBL),