In the field of education, the COVID-19 demands changes in the learning process. It is important to know the changes that have occurred so that we can take some actions to face the changes that occurred, and help teachers prepare for the changes that occur in the learning process, especially in the physics learning process. This study aims to determine changes in the teaching, assessing, and using validated instrument aspect due to the COVID-19 pandemic. Also, gathered teacher perspectives on the availability of E-Formative Assessment in Web-based E-Learning (EFA on ElboW) integration. The sampling technique used in this study was quota sampling. Data were collected from 33 physics teachers from various districts in Indonesia and analyzed using quantitative descriptive. As a result, the significant value of paired sample test for teaching, assessing and using validated instrument aspect before and during COVID-19 successively are 0.000, 0.003, and 0.183. Then all respondents agreed that the Integration of E-Formative Assessment in Website-Based E-Learning (EFA in ELboW) was needed by physics teachers during the COVID-19 Pandemic. It can be concluded that there are changes in the teaching and assessing aspect. Also, the Integration of E-Formative Assessment in Website-Based E-Learning (EFA in ELboW) was needed by physics teachers to prepare them to deal with the changes that occur in learning due to the COVID-19 Pandemic. Of course, this article has great implication for teachers and researchers.

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Abstract. This paper presents the simple fabrication of interdigital capacitor (IDC) using print circuit board (PCB) for glucose biosensor. PCB type FR04 laminated with Cu as electrode was used as sensor base. The IDC pattern of sensor was designed by computer aided design program and printed with a laser printer on plastic polymers. Then, the IDC pattern was transferred into PCB by a laminating machine. The etching process of PCB was done by immersing in ferric chloride liquid to form Cu pattern. There were five patterns of sensors including 5, 10, 15, 20 and 25 patterns. The capacitance value of PCB was measured with RCL meter when IDC biosensor was put in air, aquades, and glucose liquid with various moles of glucose (0.02, 0.04, 0.06, 0.08, 0.1M). In air medium, the increase of pattern number of IDC sensor (from 5 to 25) caused the sensor capacitance rose from 22 pf to 46 pf. In addition, the capacitance of sensor was dramatically increased until 0.36 μf while IDC sensor with 25 patterns was put in aquades medium. In liquid glucose medium, the capacitance of IDC biosensor with 25 patterns increased until 0.58 μf on 0.1 M glucose liquid.

The purpose of this study was to determine the need for teaching materials in the form of physics e-module based on Hybrid-PBL model in schools. This research applied a descriptive method. Data were collected using a needs analysis questionnaire with 14 respondents of physics teachers spread across several regions in Indonesia and 36 respondents of class XI students in SMA Negeri 2 Sragen. Based on the results of the questionnaire, the teachers indeed need teaching materials in the form of e-module and all teachers also agree that the Hybrid-PBL model can be applied in physics learning. Students are also interested in learning physics using teaching materials that can display images, videos, animations, and simulations as well as learning by involving problems in the surrounding environment. So it can be concluded that teachers and students need a physics e-module based on Hybrid-PBL model.

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