<![CDATA[This research aims to improve the mathematical literacy skills of fifth-grade elementary school students through the application of the Learning Cycle 5E model assisted by the Number Quest Board media. The background of this study is the low mathematical literacy skills of the fifth-grade students in class 5B at Bareng 1 State Elementary School on the topic of whole numbers up to 1,000,000, as indicated by a pre-action learning completeness percentage of only 20%. This study is a classroom action research (CAR) project employing a qualitative-quantitative descriptive approach (mixed approach) and conducted over two cycles, each comprising the stages of planning, implementation, observation, and reflection. The subjects of the study are 19 students in class 5B at Bareng 1 State Elementary School, Malang, consisting of 9 male students and 10 female students. Data collection was conducted through interviews, observations, tests, and documentation. The results show a consistent improvement in students' learning completeness. In the pre-action phase, the classical completeness reached only 20% (4 students). After the implementation of the actions, completeness increased to 37% (7 students) in Cycle I, and reached 85% (16 students) in Cycle II. Based on these results, it can be concluded that the application of the Learning Cycle 5E model assisted by the Number Quest Board is effective in enhancing the mathematical literacy skills of fifth-grade elementary school students on the topic of whole numbers up to 1,000,000, thus the research is considered complete and will not proceed to the next cycle. ABSTRAK Penelitian ini bertujuan untuk meningkatkan kemampuan literasi matematis murid kelas 5 sekolah dasar melalui penerapan model Learning Cycle 5E berbantuan media Number Quest Board. Latar belakang penelitian ini adalah rendahnya kemampuan literasi matematis murid kelas 5B SDN Bareng 1 pada materi bilangan cacah sampai 1.000.000, yang ditunjukkan oleh persentase ketuntasan belajar pratindakan hanya sebesar 20%. Penelitian ini termasuk dalam penelitian tindakan kelas (PTK) dengan pendekatan deskriptif kualitatif-kuantitatif (mixed approach) yang dilaksanakan dalam dua siklus, masing-masing terdiri atas tahap perencanaan, pelaksanaan, observasi, dan refleksi. Subjek penelitian adalah 19 murid kelas 5B SDN Bareng 1, Malang terdiri dari 9 murid laki-laki dan 10 murid perempuan. Pengumpulan data dilakukan melalui wawancara, observasi, tes, dan dokumentasi. Hasil penelitian menunjukkan peningkatan ketuntasan belajar murid secara konsisten. Pada pratindakan, ketuntasan klasikal hanya mencapai 20% (4 murid). Setelah penerapan tindakan, ketuntasan meningkat menjadi 37% (7 murid) pada Siklus I, dan mencapai 85% (16 murid) pada Siklus II. Berdasarkan hasil tersebut, dapat disimpulkan bahwa penerapan model Learning Cycle 5E berbantuan Number Quest Board efektif meningkatkan kemampuan literasi matematis murid kelas 5 sekolah dasar pada materi bilangan cacah sampai 1.000.000, sehingga penelitian dinyatakan tuntas dan tidak dilanjutkan ke siklus berikutnya.]]>
