The purpose of this study is three-fold. First, to explore the effects of online peer-dynamic assessment (Peer-DA), rooted in the Zone of Proximal Development (ZPD) notion, on boosting Iranian high school students' writing skills. Second, to disclose how online Peer-DA can lead to improving the participants' writing skills. Third, to disclose…

Peer assessment has been frequently used to improve students' academic writing skills. However, how to address students' unsatisfactory attitude during the peer assessment process remains a major challenge to further improve students' learning outcome and engagement. In our project, we implemented Interactive Peer Assessment, which comprised…