Based upon the self-regulated learning theory, this study examined the relationships between academic achievement and three key self-regulatory constructs - prior domain knowledge, self-efficacy, and the use of learning strategies - in two flipped undergraduate math courses. Structural equation modeling was employed as the primary method to analyze the relationships in both the pre-class and in-class learning environments of the flipped courses. The results of the study showed that students' self-efficacy in learning math and the use of help seeking strategies were all significantly positively...