<![CDATA[The low mastery of science concepts in primary schools resulting from the dominance of one-way conventional instruction necessitates innovative learning models supported by adaptive evaluation media. This study aimed to analyze the effect of implementing the Student Teams Achievement Division (STAD) cooperative learning model assisted by Quizizz Paper Mode on the cognitive learning outcomes of fourth-grade students in IPAS on the topic of Gaya di Sekitar Kita at SDN 002 Samarinda Kota. The research was conducted in the second semester of the 2025/2026 academic year using a quantitative quasi-experimental method with a nonequivalent control group design. The research sample consisted of 57 fourth-grade students, divided into an experimental class (n=28) receiving STAD instruction assisted by Quizizz Paper Mode and a control class (n=29) receiving conventional lecture-based instruction and standard worksheets. Data were gathered through valid and reliable multiple-choice tests (pretest and posttest). Data were analyzed using normality and homogeneity prerequisite tests, Normalized Gain (N-Gain) calculations, and independent sample t-tests via IBM SPSS Statistics 25. The results demonstrated that the posttest mean score of the experimental class (83.57) significantly outperformed that of the control class (69.66). The experimental class achieved an N-Gain score of 0.61 (moderate category), surpassing the control class score of 0.24 (low category). Hypothesis testing yielded a significance value of p=0.001<0.05, confirming a statistically significant effect of STAD assisted by Quizizz Paper Mode on students' cognitive learning outcomes. The integration of heterogeneous cooperative discussions and paper-scanned digital gamification assessments successfully created an active, collaborative, and engaging learning environment. ABSTRAK Rendahnya penguasaan konsep sains di sekolah dasar akibat dominasi pembelajaran konvensional satu arah menuntut adanya pembaruan model pembelajaran yang interaktif dan didukung media evaluasi adaptif. Penelitian ini bertujuan untuk menganalisis pengaruh penerapan model pembelajaran kooperatif tipe Student Teams Achievement Division (STAD) berbantuan Quizizz Mode Kertas terhadap hasil belajar kognitif IPAS materi Gaya di Sekitar Kita pada siswa kelas IV SDN 002 Samarinda Kota. Penelitian dilaksanakan pada semester genap Tahun Ajaran 2025/2026 menggunakan pendekatan kuantitatif dengan metode eksperimen semu (quasi-experiment) dan desain nonequivalent control group design. Sampel penelitian berjumlah 57 siswa yang terbagi menjadi kelas eksperimen (n=28) yang memperoleh perlakuan model kooperatif STAD berbantuan Quizizz Mode Kertas dan kelas kontrol (n=29) yang memperoleh pembelajaran konvensional metode ceramah dan penugasan lembar kerja kertas. Data dikumpulkan melalui instrumen tes objektif pilihan ganda (pretest dan posttest) yang telah teruji validitas dan reliabilitasnya. Data dianalisis melalui uji prasyarat normalitas dan homogenitas, analisis Normalized Gain (N-Gain), serta uji hipotesis independent sample t-test berbantuan IBM SPSS Statistics 25. Hasil penelitian menunjukkan bahwa rata-rata nilai posttest kelas eksperimen (83,57) lebih tinggi secara signifikan dibandingkan kelas kontrol (69,66). Nilai N-Gain kelas eksperimen mencapai 0,61 (kategori sedang), melampaui kelas kontrol sebesar 0,24 (kategori rendah). Uji hipotesis memperoleh nilai signifikansi p=0,001<0,05, yang membuktikan adanya pengaruh signifikan dari penerapan model STAD berbantuan Quizizz Mode Kertas terhadap peningkatan hasil belajar kognitif IPAS siswa. Kombinasi diskusi kelompok heterogen dan asesmen game-based berbasis pemindaian kertas terbukti efektif menciptakan iklim belajar yang aktif, kolaboratif, dan menyenangkan. ]]>
