This research aims to identify the impact of a proposed strategy based on using Graphic Calculator "TI-Nspire CX CAS" in the light of Marzano's dimensions of learning model on developing reflective thinking for 3 rd Prep class Students.theresearch sample consisted of (59) students from Al-Sadat Preparatory School for Girls, Qutour Educational Administration, Gharbia Governorate.were randomly selec...