This study aimed to understand level of feasibility of learning media based-Lectora Inspire for special topic of acids and bases developed according to BSNP standard for interactive computer media; and to know the differences of the improvement of students is conceptual skills in learning acids and bases studied by using computer media of Lectora Inspire developed with power-point. It used R & D method (Development Research) with model ADDIE. The population of this study was students of class XI and teachers in MAN 2 Langsa, and lectures of Postgraduate Program of Chemistry Education at State University of Medan. Sample in this study was students of class MIA 1 and MIA 2 which have 30 students for each class. The BSNP questionnaire was used as the instrument after had been integrated with computer interactive media, and multiple choice questions used to measure students conceptual skills. Data were analyzed using descriptive method and statistical analysis with independent sample t-test. The result showed that: the developed learning media of Lectora Inspire was categorized with level of very feasible by content feasibility of 4.8 and presentation feasibility of 4.7, and there was the difference of students conceptual skills (Ngain of students) for special topic of acids and bases that learned using computer media of Lectora Inspire which had been developed with power-point media (0.041).

Telah dilakukan penelitian yang berjudul “Upaya Meningkatkan Hasil Belajar Siswa Dengan Menggunakan Strategi Pembelajaran Process Oriented Guided Inquiry Learning (POGIL) Pada Materi Kelarutan Dan Hasil Kali Kelarutan”. Penelitian ini bertujuan untuk mengetahui tanggapan siswa terhadap penerapan strategi pembelajaran POGIL dalam pembelajaran. Penelitian ini menggunakan jenis penelitian deskriptif dan pendekatan kualitatif. Subjek diambil dengan cara purposive sampling, yaitu siswa kelas XI IPA 2 dengan jumlah siswa sebanyak 26 orang yang terdiri dari 18 siswa laki-laki dan 8 siswa perempuan. Teknik pengumpulan data dilakukan dengan cara angket. Data yang diperoleh diolah dengan menggunakan rumus persentase. Hasil penelitian menunjukkan bahwa siswa yang memberikan respon positif terhadap penerapan strategi pembelajaran POGIL sebesar 80,29% dan siswa yang memberikan respon negatif sebesar 19,71%. Berdasarkan hasil penelitian dapat disimpulkan bahwa siswa memberi tanggapan positif terhadap penerapan strategi pembelajaran POGIL.   The Research entitled "Efforts to Improve Student Learning Outcomes Using the Strategy of Process Oriented Guided Inquiry Learning (POGIL) in Solubility and Solubility Products" had been carried out. This study aimed to determine the student responses to the application of POGIL learning strategies in learning. This study used a type of descriptive research and qualitative approach. The subjects taken by purposive sampling were the students of XI IPA 2 with a total of 26 students consisted of 18 male students and 8 female students. Data collection techniques were carried out by questionnaire. The data obtained were processed using the percentage formula. The results showed that students giving a positive response to the implementation of the POGIL learning strategy was 80.29% and students giving a negative response was 19.71%. Based on the results of the study it could be concluded that students gave a positive response to the implementation of the POGIL learning strategy.