This study, conducted in Israel, examined how learning strategies and motivational orientations contributed to high school students' sense of achievement in a massive open online course. The objective was to integrate an innovative teaching-learning strategy into the educational system that is based on online learning for students in subjects that are rich in knowledge and technology. The researchers used a motivated strategies learning questionnaire modified to fit the purpose of this study. In addition, the researchers built and used a sense of achievement index based on social pedagogy as a leading principle in the current learning model. Structural Equation Modeling path analysis results suggested that projects-based learning subjects had a significant positive impact on motivational orientations and learning strategies, and they in turn had a significant positive impact on students' sense of achievement.