“…For example, frequent, short, and purposeful assignments (first phase) are positively related to students' homework effort, positive emotions, and academic achievement (e.g., Fan et al, 2017;Fernández-Alonso, Suárez-Álvarez, & Muñiz, 2015;Rosário et al, 2018;Trautwein, Niggli, Schnyder, & Lüdtke, 2009). On the other hand, high amount of homework and repetitive exercises are counterproductive to students' achievement (e.g., Fernández-Alonso, Álvarez-Díaz, Suárez-Álvarez, & Muñiz, 2017;Trautwein, 2007;Trautwein, Köller, Schmitz, & Baumert, 2002). Research also indicated that students' autonomous homework completion (second phase) is more beneficial to academic achievement than completing homework with help (Fernández-Alonso et al, 2015;Fernández-Alonso, Suárez-Álvarez, & Muñiz, 2016).…”