Skripsi
PENGEMBANGAN BAHAN AJAR BUKU DIGITAL MENGGUNAKAN APLIKASI HEYZINE PADA MATERI SUDUT KELAS V SDN 1 TALANG PANGERAN
The development of a Heyzine flipbook-based digital teaching material on angles for fifth-grade students at SD Negeri 1 Talang Pangeran aimed to identify the development procedure, validity, and practicality of the teaching material. This research employed the Research and Development (R&D) method, using a modified ADDIE model with four stages: Analyze, Design, Development, and Implementation. Data collection techniques included observation, interviews, questionnaires, and documentation. The validity of the teaching material was evaluated by material experts, design experts, and a learning practitioner (teacher), yielding scores of 93.75%, 97%, and 96.25%, respectively, all of which were considered highly valid. The practicality assessments in individual, small-group, and large-group trials obtained scores of 95.24%, 97.61%, and 98.41%, respectively, all of which were categorized as highly practical. Based on these results, the Heyzine digital book teaching material was both highly valid and practical, indicating that it is well-suited to support mathematics learning on angle material for fifth-grade elementary school students. Keywords: Development, Digital Book, Heyzine, Angles.
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