FKIP – The Chemistry Education Study Program, Faculty of Teacher Training and Education (FKIP), Sebelas Maret University (UNS) Surakarta successfully held an expert lecture. This expert lecture was held offline on Wednesday (10/7/2024), located in the Hall of Building G, FKIP UNS.

This expert lecture was held under the auspices of the Indonesian Chemistry Association (HKI) in collaboration with three study programs, namely the Natural Science Education Study Program (IPA), the Chemistry Education S-1 Study Program, and the Chemistry Education S-2 Study Program. The expert lecture was opened directly by the Dean of FKIP UNS, Prof. Dr. Mardiyana, M.Si. In her speech, Prof. Mardiyana expressed her gratitude and respect for the implementation of the expert lecture activity which presented speakers from Germany directly.

“We are very honored by the presence of Prof. Barke, whose visit is in line with the vision of the Faculty of Teacher Training and Education (FKIP) to become a world-class university. One of our key initiatives to achieve this vision is the Guest Professor Program, which invites leading scholars from prestigious international universities to share their knowledge and expertise with our community,” said Prof. Mardiyana.

The expert lecture entitled “System Thinking for Interpreting Chemical Reaction on Submicro Level” presented a guest speaker from the University of Münster, Germany, Prof. Dr. Hans-Dieter Barke. Prof. Barke has been a professor at the University of Münster since 2013 and has extensive experience as a lecturer and seminar leader around the world, especially in laboratory environments. Prof. Barke is renowned for his expertise in systems thinking by interpreting chemical reactions at the submicro level without using laboratory jargon.

In this expert lecture, Prof. Barke presented material related to “System Thinking by Interpretation of Chemical Reaction on Submicro Level – without Laboratory Jargon”. Prof. Barke explained that system thinking was still poor in the 19th century. Substances had been discovered in the first real hypothesis for the existence of atoms dating back to Dal 1808, while for molecules from Avogadro (Italy) in 1811. However, the idea of ions came much later, the idea was proposed by Arrhenius (Sweden) in 1886.

Furthermore, Prof. Barke explained about preconceptions and misconceptions created in schools. Preconceptions are brought by most children through careful observation in their daily lives. Examples of preconceptions such as combustion (something will be lost, destroyed), changes in the form of substances (copper changes from red to green, iron from gray to black, silver from shiny to black), and gas is not a substance (it has no mass”), etc.

Furthermore, misconceptions can be developed by inappropriate teaching. Examples include chemical equilibrium (reactants and products show the same concentration, showing the same amount of substance), acid-base (acids contain H, bases contain OH”), weak acids (they have a pH of 3 or higher), and redox reactions (oxygen is always involved”). Finally, Prof. Barke presented material based on the book he wrote, the book “Essentials of Chemical Education”.

Reporter: Nila Prihartanti
Editor: Budi Suseno

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