Metode keadaan padat (Solid Stated) merupakan suatu cara yang dilakukan dengan mereaksikan padatan dengan padatan lainnya dengan suhu yang tinggi. Metode ini dapat digunakan untuk mensintesis material baik organik maupun anorganik. Sintesis material adalah suatu integrasi beberapa material untuk menghasilkan material baru. Pada metode solid stated terdapat beberapa langkah dalam mensintesis material yaitu penggerusan sampel, kompaksi sampel, kalsinasi sampel, sintering sampel, dan terakhir sampel dikarakterisasi.

This research aims to develop teaching materials in the form of e-modules that are valid and practical. The type of research used is research and development (RD). The development model used is the 4-D model which includes 4 stages, namely the define, design, develop and disseminate. Research carried out until the development stage, namely the validity and practicality test. The instruments used were validity and practicality sheets. The e-module was validated by 6 validators, while the practicality test was conducted by 3 chemistry teachers and 30 students XI MIA 6 of SMAN 5 Padang. The results of the validity and practicality analysis showed a validity value of 0.840 with a very high category. The practicality value by students is 0.920 and the teacher is 0.841  with a very high category. Thus, e-module based on discovery learning on electrolyte and non-electrolyte solution materials in class X SMA / MA is valid and practical.

In writing scientific work, a work system is needed online (online) so that the search process is fast and accurate. The online data-based writing model with endnote application is an alternative model of scientific writing that can be applied to school teacher teachers and lecturers. The purpose of this study was to develop a model of scientific writing and measure the effectiveness of its application to MGMP Chemistry teachers in Padang Panjang City. The method used is the development of the ADDIE model and the success test with CV (Coefficient of Variations). Implementation is carried out on all Chemistry teacher teachers who are members of the Padangpanjang City Chemical MGMP. Each teacher will receive training and assistance in creating an Online Library as a database. The training continued with the application of the preparation of scientific works based on student learning outcomes data in each school. From the results of the study, it was found that the level of ease in literacy and compilation of scientific work reached 70% SS and 30% S. The level of interest of Master in compiling scientific work with Endnote reached 30%. SS san 70% S. The desire of participants to start compiling scientific work reaches 20% US, 60% S and 20% SS. The training effectiveness test found that the coefficient of variation had decreased from 2.75% to 1.63%, so it could be concluded that the model for the preparation of scientific work was successfully applied to the Teachers of the Padangpanjang Chemical MGMP.

In writing scientific work, a work system is needed online (online) so that the search process is fast and accurate. The online data-based writing model with endnote application is an alternative model of scientific writing that can be applied to school teacher teachers and lecturers. The purpose of this study was to develop a model of scientific writing and measure the effectiveness of its application to MGMP Chemistry teachers in Padang Panjang City. The method used is the development of the ADDIE model and the success test with CV (Coefficient of Variations). Implementation is carried out on all Chemistry teacher teachers who are members of the Padangpanjang City Chemical MGMP. Each teacher will receive training and assistance in creating an Online Library as a database. The training continued with the application of the preparation of scientific works based on student learning outcomes data in each school. From the results of the study, it was found that the level of ease in literacy and compilation of scientific work reached 70% SS and 30% S. The level of interest of Master in compiling scientific work with Endnote reached 30%. SS san 70% S. The desire of participants to start compiling scientific work reaches 20% US, 60% S and 20% SS. The training effectiveness test found that the coefficient of variation had decreased from 2.75% to 1.63%, so it could be concluded that the model for the preparation of scientific work was successfully applied to the Teachers of the Padangpanjang Chemical MGMP