Abstract. The authors in this paper draw attention to the importance of an instrument that can analyze student's misconception.This study described the kind of the misconception in acid-base theory, and the percentage students' misconception occur in every subconcept of acid-base theory. The design of this study is a descriptive method, involved 148 of 11 th grade science students from Senior High School, which divided into two classes are high cognitive and low cognitive. Further analysis of using Modified Certainty of Response Index (CRI) as a diagnostic instrument is used to explore misconception which in that test included evaluating only content knowledge with considering the reason behind the students' choice of response and their certainty of response in every question. The result of data analysis has shown that misconception occurred in high cognitive class, gained 43,86% and misconception occurred in low cognitive class, gained 24,63%. Based on the diagnostic interview has shown that misconception occurred in students due to students does not understand the concept well and they related the one concept to the other concepts with partial understanding, the result students make the failed conclusions. The type of misconception occurred is a conceptual misunderstanding. According to the data analysis showed that Modified Certainty of Response Index (CRI) is effective used to analyze students' misconceptions and the diagnostic interview is effective used to know the reasons that caused students which having misconceptions.

This study aims to obtain information about community knowledge and types of medicinal plants used by the people of the Nangapanda District, East Nusa Tenggara Province. This research was conducted in three villages in the Nangapanda subdistrict namely West Ondorea Village, Timba Zi'a and Uzu Zozo Village. Data collection was carried out by interviewing and distributing questionnaires to gather information about the use of medicinal plants by the community and track that aims to equate the results of interviews and questionnaires with the actual situation at the study site. The results showed that 73% of people use medicinal plants for preventive and healing activities and there are 54 types of medicinal plants used.

Tujuan penelitian ini adalah untuk mengetahui efikasi diri siswa pada penerapan model pembelajaran pemecahan masalah berbasis representasi multipel dengan model pembelajaran pemecahan masalah pada materi kesetimbangan kimia. Penelitian ini merupakan penelitian kuasi eksperimen dengan Posttest Only Design. Sampel dalam penelitian ini adalah dua kelas siswa kelas XI MIPA pada salah satu SMA di Yogyakarta yang diambil menggunakan teknik Purposive sampling. Kelas eksperimen (26 siswa) diajarkan dengan model pembelajaran pemecahan masalah berbasis representasi multipel sedangkan kelas kontrol (24 siswa) diajarkan dengan model pembelajaran pemecahan masalah. Terdapat perbedaan efikasi diri siswa antara penerapan model pembelajaran pemecahan masalah berbasis representasi  multipel dengan model pembelajaran pemecahan masalah pada materi kesetimbangan kimia. Siswa pada kelas yang diterapkan model pembelajaran pemecahan masalah berbasis representasi multipel memiliki skor efikasi diri yang lebih baik daripada siswa pada kelas yang diterapkan model pembelajaran pemecahan

Merdeka belajar kampus merdeka (MBKM) merupakan program yang mendorong mahasiswa menguasai berbagai bidang ilmu pengetahuan sesuai dengan bidang keahliannya sehingga siap bersaing dalam dunia global. Program MBKM bertujuan agar mahasiswa memperoleh hak belajar tiga semester di luar program studi agar dapat meningkatkan kompetensi baik hard skill maupun soft skill nya. Tujuan penelitian yang dipaparkan pada artikel ini adalah mengetahui pemahaman dan kesiapan mahasiswa program studi Agroteknologi dalam implementasi MBKM. Metode penelitian secara deskriptif kualitatif menggunakan kuisioner yang diisi oleh mahasiswa pada Link SPADA Dikti. Hasil penelitian menunjukkan bahwa terdapat 46% mahasiswa belum mengetahui sama sekali tentang kebijakan MBKM dan 54% mahasiswa telah mengetahui kebijakan MBKM baik yang mengetahui sedikit, secara garis besar maupun secara keseluruhan isi kebijakan MBKM. Namun, dari 54% mahasiswa yang telah mengetahui kebijakan 80% mahasiswa telah siap untuk mengikuti kegiatan MBKM meskipun masih terdapat 14% yang belum siap dan 6% mahasiswa tidak berminat.. Hal ini menunjukkan bahwa mahasiswa Agroteknologi siap untuk mejadi bagian dari penerapan MBKM, namun harus dilakukan sosialisasi secara menyeluruh agar semua mahasiswa memahami tentang implementasinya.

Determination of optimum condition for starch hydrolysis Aspergillus niger in shell potato waste. Shell Potato waste can be used as a raw material for making bioethanol because it contains carbohydrate ingredients, starch. The process of making bioethanol from starchy materials can be done through the hydrolysis process, then proceed with the fermentation process. The hydrolysis process is carried out to hydrolyze starch into glucose with the help of amylase enzyme produced from the Aspergillus nigerbacterium. This research was carried out at the Chemistry Laboratory of FMIPA Malang State University. The purpose of this study was to determine the optimum conditions for hydrolysis of starch from potato skin which includes temperature, pH, time and amount of Aspergillus niger used. The glucose level produced from the hydrolysis process is determined using the Somogy-Nelson method. The results showed that the optimum conditions for starch hydrolysis to produce optimum glucose levels were using 1.25 grams of Aspergillus niger (equivalent to 50 mL of culture), at pH 5 and temperature of 300C within 2 hours, with glucose produced as much as 0.0167 g of 100 g of shell potato waste flour.