“…To overcome these difficulties and help students with the processes of planning science investigations it is necessary to develop instructional interventions include giving them proper guidance (Taibu et al, 2021;van Riesen et al, 2018;Zacharia et al, 2015). However, the research that is examining the contribution of instructional interventions to students' abilities regarding planning investigations focuses mainly on secondary school students and on the control of variable ability (Arnold, Kremer & Mayer, 2014;Cayvaz et al, 2020;Chen & Klahr 1999;Edelsbrunner et al, 2018;Kazeni et al, 2018;Klahr & Nigam, 2004;Lazonder & Harmsen, 2016;Lubiano & Magpantay, 2021;Roth & Roychoudhury, 1993;Schneider et al, 2002;Zion et al, 2004). It has been pointed out that further study of this issue is necessary with elementary school students (Schalk et al, 2019).…”