<![CDATA[ABSTRACT The limited availability of instructional media that effectively supports shared reading activities, together with the lack of integration of Sustainable Development Goal (SDG) 7 values into English literacy instruction, has resulted in suboptimal behavioral engagement among young learners. This study aimed to analyze the actual needs underlying the development of an SDG 7-based Big Book to enhance preschool students' behavioral engagement in English literacy learning. A qualitative descriptive approach was employed during the need analysis phase of the Design and Development Research (DDR) framework at Danen'D Kiddy School. Data were collected through structured classroom observations and semi-structured interviews with classroom teachers and were analyzed using thematic analysis to identify instructional needs. The findings revealed three major issues: (1) the limited availability of Big Book media to support whole-class shared reading activities, (2) uneven and insufficient behavioral engagement among students during reading sessions, and (3) the absence of English reading materials integrating sustainability themes, particularly SDG 7 on affordable and clean energy. These findings indicate a clear discrepancy between pedagogical needs and the instructional media currently available in the classroom. This study provides an empirical foundation for developing an SDG 7-based Big Book prototype that integrates the enhancement of behavioral engagement with the promotion of sustainability literacy in early childhood education. ABSTRAK Keterbatasan media pembelajaran yang mendukung kegiatan shared reading serta belum terintegrasinya nilai-nilai Sustainable Development Goal (SDG) 7 dalam pembelajaran literasi bahasa Inggris menyebabkan keterlibatan perilaku (behavioral engagement) anak usia dini belum berkembang secara optimal. Penelitian ini bertujuan menganalisis kebutuhan riil sebagai dasar pengembangan media Big Book berbasis SDG 7 untuk meningkatkan behavioral engagement siswa pada pembelajaran literasi bahasa Inggris. Penelitian menggunakan pendekatan deskriptif kualitatif yang dilaksanakan pada tahap need analysis dalam kerangka Design and Development Research (DDR) di Danen'D Kiddy School. Data diperoleh melalui observasi kelas menggunakan lembar observasi terstruktur dan wawancara semiterstruktur dengan guru, kemudian dianalisis secara tematik untuk mengidentifikasi kebutuhan pembelajaran. Hasil penelitian menunjukkan tiga temuan utama, yaitu: (1) terbatasnya ketersediaan media Big Book yang mendukung pelaksanaan shared reading secara klasikal, (2) behavioral engagement siswa selama kegiatan membaca masih belum optimal dan belum merata, serta (3) materi bacaan bahasa Inggris yang digunakan belum mengintegrasikan tema keberlanjutan, khususnya SDG 7 tentang energi bersih dan terjangkau. Temuan tersebut menunjukkan adanya kesenjangan antara kebutuhan pedagogis di kelas dengan media yang tersedia. Penelitian ini memberikan kontribusi empiris sebagai landasan pengembangan prototipe Big Book berbasis SDG 7 yang mengintegrasikan peningkatan behavioral engagement dengan penguatan literasi keberlanjutan pada anak usia dini.]]>
