Distance learning and online learning have become the new educational paradigm. Based on synchronicity, online learning environments can be classified into synchronous and asynchronous online learning. However, previous evidence demonstrating the effects of these two online learning modalities on students' academic achievement has been…

Information and communication technologies (ICTs) in basic education, i.e. K12 education, have often been constrained by sociocultural context and limited to pedagogical aspects, and these innovations have not yet catalyzed curriculum reform as expected. To address this research gap, this study adopted a key-competence-based subject knowledge…