: A Remote vs In-Person Class Evaluation (Journal Article) Barbosa, Leila S. V. creator Strauch, Pietra | Santos, Daniele C. M. B. | Korn, Maria Graças A. | Santana, Rodolfo M. M. text Washington DC :American Chemical Society ,2023 monographic eng

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2601-2607p. Abstract: During the pandemic caused by SARS-CoV-2 (COVID-19), a paper analytical device (PAD) was proposed as a tool for remote laboratory classes for undergraduate chemistry to teach calibration curve concepts. For this experiment, students were taught how to prepare a PAD, calibrate standard solutions, construct a calibration curve, and treat data obtained by colorimetry digital image, by applying household utensils only. The proposed experiment was evaluated considering remote and in-person courses. More than 80% of the students in both groups reached grades greater than 60%. The students’ survey demonstrated that 80 to 100% of the students (n = 6) agreed or strongly agreed that the experiment achieved the learning outcomes concerning the calibration curve. For 50% of the group, it was also found that colorimetric reactions could be more effective than the simple dye impregnation method. ***______{For Hard Copy, Please visit Library.}________*** analytical chemistry| digital image colorimetry| paper analytical device| homemade instrumentals| distance learning| self-instruction| quantitative analysis| Covid-19| Pandemic 0021-9584 https://doi.org/10.1021/acs.jchemed.2c01081 https://doi.org/10.1021/acs.jchemed.2c01081 231120 20231120104410.0