Pengembangan LKPD Berorientasi Assessment For Learning (AfL) untuk Meningkatkan Hasil Belajar Peserta Didik pada Materi Sistem Periodik Unsur (SPU)

Development of the Student Worksheets Based on Assessment for Learning (AfL) to Improve Student Learning Outcomes of the Elements Periodic Table

Penelitian ini bertujuan untuk menghasilkan LKPD berorientasi assessment for learning (AfL) untuk meningkatkan hasil belajar peserta didik pada materi sistem periodik unsur dengan kriteria kelayakan meliputi validitas, kepraktisan, dan keefektifan. Jenis penelitian ini adalah penelitian pengembangan dengan desain One Group Pretest Posttest Design, menggunakan model 4D yang dimodifikasi menjadi 3D dengan perlakuan yang sama pada kelas X: pretest – pertemuan 1 – pertemuan 2 – posttest. Subjek penelitian adalah peserta didik kelas X-7 SMA Negeri 7 Surabaya. Kelayakan LKPD dievaluasi berdasarkan tiga aspek: validitas, kepraktisan, dan keefektifan. Hasil pengembangan menunjukkan kelayakan LKPD berdasarkan validitas isi dan konstruk dengan median skor ≥ 4 (kriteria baik atau sangat baik). Berdasarkan angket respon peserta didik dan observasi aktivitas, LKPD dinyatakan layak berdasarkan kriteria praktis yang memperoleh modus pada respon positif ≥ 61% (kriteria praktis hingga sangat praktis). Kelayakan LKPD berdasarkan kriteria efektif diukur melalui ketuntasan tujuan pembelajaran dengan nilai di atas KKTP (≥ 75), menunjukkan > 75% peserta didik tuntas secara individu. Hasil belajar didukung dengan nilai N-gain yang menunjukkan 1 peserta didik (2,86%) pada kategori sedang dan 34 peserta didik (97,14%) pada kategori tinggi. Uji Wilcoxon Signed Rank menunjukkan nilai P-Value ˂ 0,05, yang mengindikasikan nilai posttest lebih besar daripada nilai pretest setelah penerapan pembelajaran menggunakan LKPD berorientasi assessment for learning.

Kata kunci : assessment for learning (AfL), hasil belajar, sistem periodik unsur

This study aims to produce student worksheet based on assessment for learning to improve student learning outcomes in the material of the periodic system of elements with eligibility criteria including validity, practicality, and effectiveness. This type of research is a development research with a One Group Pretest Posttest Design design, using a 4D model modified into 3D with the same treatment in class X: pretest - meeting 1 - meeting 2 - posttest. The subjects of the study were students of class X-7 of SMA Negeri 7 Surabaya. The eligibility of student worksheet was evaluated based on three aspects: validity, practicality, and effectiveness. The development results showed the eligibility of student worksheet based on content and construct validity with a median score of ≥ 4 (good or very good criteria). Based on the student response questionnaire and activity observations, student worksheet was declared feasible based on practical criteria that obtained a mode on a positive response of ≥ 61% (practical to very practical criteria). The feasibility of student worksheet based on effective criteria is measured through the completion of learning objectives with a value above passing grade (≥ 75), indicating that > ​​75% of students have completed it individually. Learning outcomes are supported by the N-gain value which shows 1 student (2.86%) in the medium category and 34 students (97.14%) in the high category. The Wilcoxon Signed Rank test shows a P-Value of ˂ 0.05, which indicates that the posttest value is greater than the pretest value after implementing learning using student worksheet based on assessment for learning.

Keywords : assessment for learning (AfL), learning outcomes, elements periodic table