The advancement of mobile technology has influenced teaching and learning at various educational levels. The mobility, ubiquity, and connectivity of mobile devices help to foster meaningful learning experience across contexts and in different subject areas. Positive results from mobile learning have been reported in the current literature. To help to further the discussion and provide references for practitioners at various educational levels, this paper categorizes main pedagogical practices of mobile learning in K-12 and higher education settings into nine types: situated learning, communication and collaborative learning, game-based learning, inquiry-based learning, informal learning, personalized learning, behaviorist learning activities, learning content access and review, student engagement and motivation. Mobile learning in distance education is also discussed.