Coaches that deliver the program will be randomly assigned to either treatment or control group. In this way, students of the schools that are assigned to coaches in the control group will receive the program with no alterations. i.e. reflection/debrief on the keywords at the end of each session as usual. Same way, students of the schools that are assigned to coaches in the treatment group will along with the usual session debrief/reflection receive the retrieval practice in a form of of a puzzle. At the end of the first three sessions, each class of the students in the treatment school will be divided into three smaller groups and each group will be asked to combine one of the three different sets of puzzle pieces that spell three keywords taught during each session.
Prior to Session 4, both the students in control and treatment condition will be given Quiz 1, i.e. they will be asked to choose the keywords they learned about during Sessions 1, 2, and 3 among a list of words.
At the end of the cycle (i.e., prior to session 10), both groups will be given the final quiz that will consist of a list of words, out of which, students will be required to pick out all the keywords learned during the previous 9 sessions of the program.