direct instruction

Low learning interest in Natural and Social Sciences (IPAS) remains a concern in elementary schools, including SD Negeri 1 Jatimulyo, South Lampung, where a preliminary survey classified 47 of 77 fifth-grade students (61.0%) as having low interest. This study examined differences in IPAS learning interest between students taught with a joyful learning strategy supported by the game-based learning platform Wordwall and students taught with direct instruction using textbooks and worksheets. This quantitative quasi-experiment used a nonequivalent control group design with all fifth-grade students (saturated sampling; class VA as the experimental group, n = 39, and class VB as the control group, n = 38) across six meetings on ecosystems. Learning interest was measured with a questionnaire of 10 valid items (Cronbach's α = 0.814) and analysed with an independent samples t-test. The mean post-questionnaire score was higher in the experimental class (34.84) than in the control class (26.41), and the difference was statistically significant (t = −13.308, df = 75, p < .001). However, the experimental class also began with a higher mean pretest score (30.42 versus 23.15), so the result should be interpreted with caution. The strategy may serve as an alternative for IPAS instruction, and further studies that control for initial interest are needed. ABSTRAK Minat belajar IPAS peserta didik sekolah dasar masih menjadi persoalan, termasuk di SD Negeri 1 Jatimulyo, Lampung Selatan. tempat survei awal menunjukkan 47 dari 77 peserta didik kelas V (61,0%) berminat belajar rendah. Penelitian ini bertujuan menguji perbedaan minat belajar IPAS antara peserta didik yang belajar dengan strategi joyful learning berbantuan media game-based learning Wordwall dan peserta didik yang belajar dengan direct instruction berbantuan buku dan LKPD. Penelitian kuantitatif ini menggunakan kuasi-eksperimen nonequivalent control group design pada seluruh peserta didik kelas V (sampling jenuh; kelas VA sebagai kelas eksperimen, n = 39, dan kelas VB sebagai kelas kontrol, n = 38) dengan materi ekosistem selama enam pertemuan. Minat belajar diukur dengan angket 10 butir valid (α = 0,814) dan dianalisis dengan uji-t sampel independen. Rerata skor akhir kelas eksperimen (34,84) lebih tinggi daripada kelas kontrol (26,41), dan perbedaan itu signifikan secara statistik (t = −13,308; db = 75; p < 0,001). Namun, kelas eksperimen juga memulai dengan rerata skor awal yang lebih tinggi (30,42 berbanding 23,15), sehingga hasil perlu ditafsirkan secara hati-hati. Strategi ini dapat dipertimbangkan sebagai alternatif pembelajaran IPAS, dan penelitian lanjutan dengan pengendalian skor awal diperlukan.

Students' conceptual understanding of force is challenged by persistent difficulties in interpreting interactions, resultant forces, and changes in motion. This study examined the classroom implementation of a five-phase Experiential-Based Deep Learning (EBDL) instructional model designed to connect firsthand observation with reflection, evidence-based explanation, and transfer. A quasi-experimental nonequivalent pretest–posttest design involved 40 eighth-grade students at one Indonesian junior secondary school, with 20 students receiving EBDL and 20 receiving Direct Instruction. Conceptual understanding was assessed using five essay items on force; expert content ratings yielded an overall Aiken's V of 0.870 after recalculation. Available group-level posttest results favored the EBDL group (M = 85.85, SD = 5.51) over the control group (M = 81.30, SD = 7.00). The reported Mann–Whitney test indicated a between-group difference (U = 124.00, Z = −2.06, p = 0.039, r = 0.326). The model's distinctive instructional contribution is its explicit progression from discrepant experiences through reflective meaning-making and force-based reasoning to contextual application and transfer. However, aggregate posttest results do not establish which cognitive process benefited most, whether individual misconceptions were corrected, or the magnitude of pretest-to-posttest change. These findings support further testing of EBDL as a structured, context-sensitive alternative for junior secondary force instruction, with stronger item-level and implementation evidence required before wider causal or generalizable claims are made.

This study aimed to analyze the effect of the Problem Based Learning (PBL) model on students’ learning activities and learning outcomes in the topic of environmental change and environmental conservation among tenth-grade students at SMAN 14 Medan. The research employed a quasi-experimental method using a Pretest-Posttest Non-equivalent Control Group Design. The sample was selected through purposive sampling and consisted of two classes: Class X-7 as the experimental group, which received instruction using the Problem Based Learning model, and Class X-8 served as the control class, utilizing conventional instruction based on the direct instruction model. Data were collected through both non-test and test techniques. The non-test instrument consisted of an observation sheet used to assess students’ learning activities, while the test instrument consisted of 20 multiple-choice questions used to measure students’ learning outcomes. The research results indicate that the implementation of the Problem-Based Learning (PBL) model has a positive impact on students' learning activities and learning outcomes. Students taught using the PBL model demonstrated higher levels of engagement during the learning process and achieved better learning outcomes compared to students taught via the conventional Direct Instruction model. These findings suggest that the PBL model is more effective in enhancing student engagement and understanding of the learning material. Statistical analysis revealed significance values ​​of 0.023 (p < 0.05) for learning activities and 0.000 (p < 0.05) for learning outcomes. Based on these results, it can be concluded that the Problem-Based Learning (PBL) model significantly influences the learning activities and learning outcomes of Grade X students at SMAN 14 Medan regarding the topic of environmental change and conservation.

هدف این پژوهش، تحلیل تأثیر مدل یادگیری مبتنی بر مسئله (Problem Based Learning یا PBL) بر فعالیت‌های یادگیری و نتایج یادگیری دانش‌آموزان در موضوع تغییرات محیط زیست و حفاظت محیط زیست در میان دانش‌آموزان پایه دهم دبیرستان SMAN 14 Medan بود. این پژوهش با استفاده از روش شبه‌آزمایشی و طرح پیش‌آزمون-پس‌آزمون با گروه کنترل غیرمعادل انجام شد. نمونه‌گیری به صورت هدفمند انجام گرفت و شامل دو کلاس بود: کلاس X-7 به عنوان گروه آزمایش که آموزش با استفاده از مدل یادگیری مبتنی بر مسئله دریافت کرد و کلاس X-8 به عنوان گروه کنترل که آموزش متعارف مبتنی بر مدل آموزش مستقیم را دریافت نمود. داده‌ها از طریق تکنیک‌های آزمون و غیرآزمون گردآوری شد. ابزار غیرآزمون شامل برگه مشاهده برای ارزیابی فعالیت‌های یادگیری دانش‌آموزان بود و ابزار آزمون شامل ۲۰ سؤال چندگزینه‌ای برای سنجش نتایج یادگیری دانش‌آموزان بود. نتایج پژوهش نشان داد که اجرای مدل یادگیری مبتنی بر مسئله (PBL) تأثیر مثبتی بر فعالیت‌های یادگیری و نتایج یادگیری دانش‌آموزان دارد. دانش‌آموزانی که با مدل PBL آموزش دیدند، سطح بالاتری از مشارکت در فرایند یادگیری نشان دادند و نتایج یادگیری بهتری نسبت به دانش‌آموزانی که با مدل آموزش مستقیم آموزش دیدند، کسب کردند. این یافته‌ها نشان می‌دهد که مدل PBL در افزایش مشارکت دانش‌آموزان و درک بهتر مطالب آموزشی مؤثرتر است. تحلیل آماری مقادیر معناداری ۰٫۰۲۳ (p < 0.05) برای فعالیت‌های یادگیری و ۰٫۰۰۰ (p < 0.05) برای نتایج یادگیری را نشان داد. بر اساس این نتایج می‌توان نتیجه گرفت که مدل یادگیری مبتنی بر مسئله (PBL) به طور معناداری بر فعالیت‌های یادگیری و نتایج یادگیری دانش‌آموزان پایه دهم دبیرستان SMAN 14 Medan در موضوع تغییر و حفاظت محیط زیست تأثیرگذار است.