The Effect of the Strategy (Summarizing in Groups) on the Acquisition of Concepts and Critical Thinking Among Sixth Grade Primary School Students in Social Studies. jperc [Internet]. 2026 Jan. 2 [cited 2026 Jun. 21];23(88):1-14. Available from: https://www.jperc.uobaghdad.edu.iq/index.php/jperc/article/view/2241