PENGARUH MODEL PEMBELAJARAN PLGI (PEER LED GUIDED INQUIRY) BERBANTU MIND MAPPING TERHADAP KEMAMPUAN PEMECAHAN MASALAH DAN KETERAMPILAN KOMUNIKASI PADAPESERTA DIDIK KELAS XI DI SMA

Indira, Larasati (2025) PENGARUH MODEL PEMBELAJARAN PLGI (PEER LED GUIDED INQUIRY) BERBANTU MIND MAPPING TERHADAP KEMAMPUAN PEMECAHAN MASALAH DAN KETERAMPILAN KOMUNIKASI PADAPESERTA DIDIK KELAS XI DI SMA. Diploma thesis, UIN RADEN INTAN LAMPUNG.

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Abstract

ABSTRAK Berdasarkan hasil pra penelitian di SMA Muhammadiyah 2 Bandar Lampung membuktikan bahwa, Kemampuan Pemecahan Masalah dan Keterampilan Komunkasi peserta didik belum dikembangkan secara optimal, sehingga menyebabkan nilai Kemampuan Pemecahan Masalah dan Keterampilan Komunikasi peserta didik masih tergolong rendah. Penelitian ini berjuan untuk mengetahui pengaruh Model Pembelajaran PLGI (Peer Led Guided Inquiri) berbantu Mind Mapping terhadap Kemampuan pemecahan masalah dan keterampilan komunikasi peserta didik kelas XI pada mata pelajaran biologi materi sistem sirkulasi. Metode yang digunakan pada penelitian yaitu Quasi Experimental dengan desain penelitian Pretest-Posttest Control Group Design, Populasi penelitian ini ialah seluruh peserta didik kelas XI MIPA SMA Muhammadiyah 2 Bandar Lampung. Teknik pengambilan sampel menggunaan Teknik Cluster Random Sampling dan didapatkan kelas XI B sebagai kelas eksperimen dan kelas XI C sebagai kelas kontrol. Instrumen penelitian berupa soal tes Multiple Choice Kemampuan Pemecahan Masalah dan angket Keterampilan Komunikasi yang sudah dilakukan uji validitas, reliabilitas, Tingkat kesukaran, dan daya pembeya, sehingga instrument memenuhi syarat. Teknik analisis data yang dipakai ialah uji Multivariate Analysis of Variance (Manova), sebelumnya dilakukan uji prasyarat yang meliputi uji normalitas dan uji homogenitas. Hasil penelitian menunjukkan bahwa nilai signifikasi Sehingga, dapat dipastikan bahwa terdapat pengaruh yang signifikan implementasi model pembelajaran PLGI (Peer Led Guided Inquiry) berbantu Mind Mapping terhadap Kemampuan Pemecahan Masalah dan Keterampilan Komunikasi peserta didik kelas XI di SMA. Kata Kunci: Kemampuan Pemecahan Masalah, Mind Mapping, Model Pembelajaran PLGI (Peer Led Guided Inquiry) ii ABSTRACT Based on a preliminary study conducted at SMA Muhammadiyah 2 Bandar Lampung, it was found that students' problem-solving abilities and communication skills were not optimally developed, resulting in low scores in these areas. This study aimed to determine the effect of the Peer-Led Guided Inquiry (PLGI) learning model, assisted by mind mapping, on the problem-solving abilities and communication skills of eleventh-grade students in biology, specifically on the circulatory system topic. This research employed a Quasi-Experimental design with a Pretest-Posttest Control Group Design. The population for this study consisted of all eleventh-grade MIPA (Mathematics and Natural Sciences) students at SMA Muhammadiyah 2 Bandar Lampung. Cluster Random Sampling was used as the sampling technique, with class XI B designated as the experimental group and class XI C as the control group. Research instruments included multiple-choice tests for problem-solving ability and communication skills questionnaires. These instruments had undergone rigorous validity, reliability, difficulty level, and discriminatory power tests, ensuring their suitability for the study. Data analysis was performed using Multivariate Analysis of Variance (MANOVA), preceded by prerequisite tests including normality and homogeneity tests. The research findings revealed a significance Therefore, it can be concluded that there is a significant influence of the PLGI learning model, assisted by mind mapping, on the problem-solving abilities and communication skills of eleventh-grade students at SMA. Keywords: Problem-Solving Ability, Mind Mapping, PLGI (Peer-Led Guided Inquiry) Learning Model

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