Pengaruh Penggunaan Lembar Kerja Siswa (LKS) Berbasis Inkuiri Terbimbing Pada Materi Larutan Penyangga Terhadap Hasil Belajar Siswa Kelas XI IPA SMAN 5 Padang
Teaching materials utilization and learning models application appropriately determine the achievement of student’s knowledge competence. Chemistry knowledge competency in XI IPA class of SMAN 5 Padang has not been expected yet. One of the causes is the teaching materials have not been able to guide the students to run their own knowledge. One of the solutions is teaching material in the form of guided inquiry based LKS. This research aims to find out the effect guided inquiry based on worksheets on buffer solution toward student learning results in XI IPA class of SMAN 5 Padang. This research conducts is Quasi Experimental Research using research design Randomized Control Group Posttest Only Design. The population of the research is all students of class XI IPA SMAN5 Padang 2016/2017. Sampling is conducted by simple random technique. The sample of this research is XI IPA 3 class as experiment class and XI IPA 4 class as control class. The research instrumental that is used is the result of learning test which are objective options. There is get that the result of learning experimental class is 83,5 higher than the control class which is 77,4. T-test at the real level of 0.05 is got that the price of tcount (2.60)> ttable(2.00). This result shows that the learning result of student in experimental class is higher than the control class significantly. So it can be concluded that the utilization of guided inquiry based LKS on the material of buffer solution has effect towards the learning result of students of XI IPA class in SMAN 5 Padang