Nasko StamenovNational High School of Science and Mathematics, Sofia, Bulgaria
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Developing new techniques in chemistry education in the context of the Bulgarian educational system.
Within the 4th module of chemistry in the 2nd high school level it is expected from students to get familiar with different types of titrations, to understand chemical reactions in volumetric analysis and understand and analyze the information gathered through the experiments. This is not always an easy task in a school environment and for that rea...
This article displays experiments developed for times when a lab or equipment is not available. The goal is for the lab work in Module 4 to be done with cheap and harmless materials, which will provide more students with the needed lab skills.
New laboratory exercises are developed, key element is that they can be done at home. The goal of their development is to provide another option aside for the exercises provided in the textbook. The experiments given are on the topics of enthalpy of processes and factors affecting the reaction rate. The new exercises are easy for the students, the...