This research aims to determine the increase of the student learning outcomes in class X MIPA 1 MAN 4 Sleman in the academic year 2021/2022 and describe the increase of the student learning outcomes on Invertebrate material through the use of a worksheet-assisted guided discovery learning model. This classroom action research had been carried out for 5 months with 2 cycles. Each cycle consists of 2 meetings. The stages of each cycle consists of planning, implementing, observing and reflecting. Quantitative data from the teacher and students observation instruments sheet and post test scores at the end of the cycle. Qualitative data in the form of notes and observer’s views. The learning steps are stimulus, problem statement, data collecting, data processing, verification, and generalization. The results shows that the implementation of learning is very good, marked by teacher activity reaching 86.7%, student activity reaching 100%. Based on data from cycle 1 and cycle 2, it shows that this use has succeeded in improving the learning outcomes of students in class X MIPA 1 MAN 4 Sleman with completeness reaching 76.7%. ABSTRAKPenelitian ini bertujuan untuk mengetahui peningkatan hasil belajar peserta didik kelas X MIPA 1 MAN 4 Sleman tahun ajaran 2021/2022 dan mendeskripsikan meningkatnya hasil belajar peserta didik pada materi Invertebrata melalui penggunaan model guided discovery learning berbantuan lembar kerja. Penelitian tindakan kelas ini dilaksanakan selama 5 bulan dengan 2 siklus. Masing-masing siklus terdiri atas 2 pertemuan. Tahapan setiap siklus yaitu perencanaan, pelaksanaan, observasi dan refleksi. Data kuantitatif diperoleh dari instrumen lembar observasi guru dan siswa serta nilai post test pada setiap akhir siklus. Data kualitatif berupa catatan dan pandangan observer dab hasil refleksi. Adapun langkah-langkah pembelajarannya adalah stimulus, problem statement, data collecting, data processing, verification, dan generalization. Hasil penelitian menunjukkan keterlaksanaan pembelajaran sangat baik ditandai dengan aktivitas guru mencapai 86,7 %, aktivitas peserta didik mencapai 100 %. Berdasarkan data siklus 1 dan siklus 2 menunjukkan bahwa penggunaan ini berhasil meningkatkan hasil belajar peserta didik kelas X MIPA 1 MAN 4 Sleman dengan ketuntasan mencapai 76,7%.
                        
                        
                        
                        
                            
                                Copyrights © 2022