Designing chemical literacy test instrumentation of acid and base topic is carried out to help develop student’s chemical literacy abilities that are beneficial to life. The purposed of this research is to describe the stages of designing questions using Model of Educational Reconstruction and describing the value of the content validity of chemical literacy questions on acid and base topic. The research’s type is to development with MER design. The content validity test conducted by 3 validates. The research instrument used was a question of chemical literacy in acid and base topic totaling 9 discourse questions which were elaborated in 15 item questions. The data obtained were processed using the Aiken’s V formula. Based on the results of research, the average value of content validity in the questions was 0.804 with a valid category.

Penelitian ini bertujuan untuk mendesain Lembar Kerja Peserta Didik berbasis Problem Based Learning untuk meningkatkan self efficacy peserta didik pada materi kelarutan dan hasil kali kelarutan yang valid berdasarkan validitas ahli materi, ahli media, praktikalitas guru dan respon peserta didik. Metode penelitian yang digunakan adalah Research and Development (R&D) dengan model pengembangan Borg and Gall. Penelitian ini dilaksanakan di MA Darul Hikmah Pekanbaru terhadap peserta didik kelas XI sains. LKPD dikatakan layak jika memenuhi aspek valid dan praktis. Kevalidan dilihat dari hasil validasi dengan menggunakan lembar validasi. Berdasarkan analisis data diperoleh hasil validasi ahli materi secara keseluruhan sebesar 94% dengan kriteria sangat valid. Validasi ahli media secara keseluruhan sebesar 98% dengan kategori sangat valid. Uji praktikalitas guru dilakukan pada 3 orang guru dan mendapatkan hasil sebesar 87% dengan kategori sangat praktis. Respon peserta didik didapat dari 15 orang peserta didik dilihat dari hasil angket sebesar 81% dengan kategori sangat praktis. Peningkatan self efficacy peserta didik dapat diketahui melalui perhitungan N-gain berdasarkan hasil pretest dan posttest. Rata-rata N-gain yang diperoleh yaitu 0,1378 dengan kategori rendah. Selain itu Peningkatan self efficacy peserta didik dapat dilihat dari angket yaitu hasil perhitungan skor menunjukkan 40% peserta didik mempunyai self efficacy yang sangat tinggi, 47% peserta didik pada kriteria tinggi, dan 13% pada kriteria cukup tinggi. Kata kunci: lembar kerja peserta didik, problem based learning, self efficacy

The Covid-19 pandemic has changed our activities, including activities in the learning process. Previously, the learning process was carried out directly in the classroom, but the pandemic has changed into online learning such as e-learning. The implementation of e-learning in schools should be followed by an analysis of the level of e-learning readiness (ELR). This study aims to determine the readiness level of State Senior High Schools (SMA Negeri) Banda Aceh, namely SMA Negeri 1, SMA Negeri 3 and SMA Negeri 4. The method used in this study was descriptive qualitative with the number of research subjects as many as 94 students and 2 teachers in each school. The instrument used in this study was a questionnaire compiled and validated based on the Aydin & Tasci ELR model. The results showed that the three schools obtained ELR scores respectively, SMA Negeri 1 () = 3.53, SMA Negeri 3 () = 3.54. The score showed that these schools are ready but need a few improvements in applying e-learning at school. Aspects that must be improved are humans, technology, innovation, and development.