PENGARUH MODEL PEMBELAJARAN OPEN ENDED PROBLEM BERBANTU MEDIA KALKULATOR DAKON (KAKON) TERHADAP HASIL BELAJAR MATEMATIKA SISWA KELAS II SDN SAMBIROTO 01 KEC. TEMBALANG KOTA SEMARANG. JGK [Internet]. 2018 Aug. 7 [cited 2026 Mar. 26];2(3):126-33. Available from: https://jurnal.unimed.ac.id/2012/index.php/jgkp/article/view/10394