“…The majority (21 out of 37) of the researcher-driven interventions provided written materials in form of lesson plans, manuals or resources, such as CDs, magazines, activity cards, and kits [50-55, 57-59, 61, 70-72, 74, 75, 77, 79, 80, 82, 83, 85, 86] while six interventions did not share resources with teachers, schools, and/or students [56,62,65,68,73,76]. The remaining nine interventions did not report any information about resources [60,63,64,66,67,69,78,81,84]. In addition to the aforementioned resources, only two studies utilized equipment (e.g., sports balls) in their programs [57,85].…”