Conference papers (KCE)
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Item Výpočty z chemických rovnic ve výuce chemie na střední škole(Belianum, 2025) Sirotek, Vladimír; Šátavová, SimonaPříspěvek se zabývá problematikou výpočtů z chemických rovnic ve výuce chemie na střední škole. V článku jsou diskutovány výsledky průzkumu, který byl prováděn na základě vyhodnocení jednoduchého testu zadaného studentům a dotazníkového šetření mezi studenty a učiteli chemie na střední škole.
Item Vzpomínka na profesora Otto Tomečka a jeho spolupráci s Pedagogickou fakultou v Hradci Králové(Belianum, 2025) Bílek, Martin; Kolář, Karel; Rychtera, JiříV závěru roku 2024 jsme si připomněli již dvacáté výročí odchodu našeho vzácného kolegy a přítele prof. RNDr. Otto Tomečka, Ph.D., Dr. h. c., emeritního rektora a profesora Katedry chemie Fakulty přírodních věd Univerzity Mateja Bela, hlavního iniciátora vzájemných vztahů mezi vysokými školami v družebních městech Banská Bystrica a Hradec Králové. V této souvislosti chtěli autoři tímto sdělením připomenout, jak obsáhlé, mnohotvárné a záslužné byly aktivity profesora Tomečka v oblasti spolupráce Katedry chemie Pedagogické fakulty Univerzity Hradec Králové a Katedry chemie Fakulty přírodních věd Univerzity Mateja Bela v Banské Bystrici a vytvořily tak do budoucna prostor pro další formy vzájemné spolupráce, která dále úspěšně pokračovala a trvá dodnes.Item Alzheimer's Disease as a Cross-cutting Theme in Chemistry?(Univerzita Pavla Jozefa Šafárika, 2025) Svitáková, Johana; Šrámová, AlenaNeurodegenerative diseases of the central nervous system are now considered a serious problem. These diseases are often considered only as diseases of the elderly and are therefore, collectively referred to as senile diseases. However, research shows that more and more young people are suffering from neurodegenerative diseases of the central nervous system. The work examined the knowledge and awareness of high school students about neurodegenerative diseases of the central nervous system, especially Alzheimer’s disease.Item Exkurze do chemických závodů v přípravě učitelů chemie(Belianum, Univerzita Mateja Bela, 2025) Hrdlička, Jan; Šrámová, Alena; Milka, DominikExkurze do chemických provozů je prezentována jako významný aspekt při přípravě budoucích učitelů chemie. Jak vnímají exkurzi sami studenti - budoucí učitelé - bylo zjišťováno dotazníkovým šetřením.Item Colors from the Perspective of a Chemistry Teacher(Pavol Jozef Šafárik University in Košice, 2025) Šrámová, Alena; Váňová, Anna; Hrdlička, JanColor reactions, or chemical reactions where colors are changed, are often used in chemistry teaching. Chemical reactions that take place with a color change are more attractive to students and increase their attention. And from the students’ point of view, the change of color proves that a chemical reaction is taking place. In the teaching of chemistry, we encounter a number of color reactions, such as carbohydrate evidence reactions, analytical reactions using the formation of a precipitation or a change in the color of indicators in acid-base reactions, or color reactions of natural substances. The work is focused on the perception of colors and their change in connection with chemical reactions and changes in the structure of compounds.Item Optimisation of Loss on Ignition at Soil for Application at School Lab(IOP Publishing, 2025) Hrdlička, Jan; Mrákota, VítOne of the parameters that is used to evaluate soil quality is the content of organic matter, which can be determined as the so-called loss on ignition. The execution of determining loss on ignition is, in principle, very simple, but it is demanding on some laboratory equipment and on work time. This contribution describes the procedures that are a model of the loss on ignition, and it is possible to accomplish them in the school laboratory. Part of the whole contribution is also the evaluation of the accuracy of data obtained by simplified procedures with data corresponding to the original method.Item The Use of Modern Information and Communication Technologies in Student’s Personal Education - SAMR Model(IOP Publishing, 2025) Sirotek, Vladimír; Nodzyńska-Moroń, Małgorzata Krystyna; Baprowska, Anna; Tláskalová, KateřinaThe article describes research on the use of computer and information technologies by students during their self-study. The research was based on the SAMR model, which differentiates the level of new media use into 4 levels: Substitution, Augmentation, Modification, and Redefinition. The creator of the SAMR model (Puentedura) considered it useful in the context of STEM learning. Fifty-one students of natural sciences took part in the research. It was assumed as a research hypothesis that students (people belonging to generation Z, so-called “digital natives”) are fluent in using new media in the process of their own education. Their level of media use was assumed to be R (or possibly M). Unfortunately, the results of the research did not confirm the hypothesis. Along with moving to a higher and higher level in the SAMR model, the number of students using computer tools and programs at a given level decreased.Item Esters and Esterification in the Preparation of Future Teachers of Chemistry and School Practice(IOP Publishing, 2025) Richtr, Václav; Konopa, MatyášThis contribution is aimed at preparing students to pursue the future profession of chemistry teacher so that they can use their theoretical knowledge and experimental skills rationally and further develop them in practice. It should also serve chemistry teachers who are already meeting teaching goals in real terms. For practical reasons, the theme of esters was chosen because esterification, together with hydrolysis, represent an important area of theoretical and experimental teaching at different types of schools. Particular attention is paid to preparing ethyl acetate on a macro scale as well as modifying the working procedure for working with smaller quantities of substances, which brings savings in chemicals as well as time, and in addition increases the safety of work. All of these specifics are requested in the current teaching process.Item Chemical Reactions in Practical Chemistry Teaching(IOP Publishing, 2025) Sirotek, Vladimír; Tláskalová, KateřinaChemical process is one of the key thematic units in chemistry education. The article focuses on the issue of chemical reactions in practical chemistry teaching at primary and secondary schools. Several concrete experiments are presented, through which pupils and students can learn about the basic types of chemical reactions (chemical combining, chemical decomposition, substitution reactions, conversion) and thus combine the information obtained with a quantitative evaluation of a chemical reaction. These concrete examples of practical tasks will introduce pupils and students to qualitative and quantitative descriptions of chemical processes. The selected tasks focus on different types of chemical reactions, their notation by chemical equations, and calculations from chemical equations.Item Chemical Experiment as a Support for Chemical Calculations Teaching(IOP Publishing, 2025) Štrofová, Jitka; Coufalová, ŠtěpánkaChemical calculations are one of the critical points in chemistry teaching at all levels of schools. The possible causes of students’ failure in solving selected chemical calculations are discussed in the paper. There are suggestions for practical tasks that can support teaching. The tasks are focused on the solution composition and calculations from chemical equations, they are suitable for elementary and high school students.Item Warstwowa mapa pojȩć – na przykładzie koncepcji homeostazy(Ostravská univerzita, 2024) Nodzyńska-Moroń, Małgorzata Krystyna; Jyż-Kuroń, DanutaW artykule opisano zastosowanie warstwowych map pojęć do zgromadzenia i uporządkowania pojęć związanych z homeostazą. Opisano początkowe założenia projektu oraz ich modyfikację wynikajacą z przeszkód napotykamych w trakcie realizacji. Realizacja treści biochemicznych nie może ograniczać się jedynie do zapamiętywania przez uczniów skojarzonych z nimi nazw lub wzorów związków chemicznych, cykli czy szlaków biochemicznych, ale powinna prowadzić do rozwinięcia umiejętności rozumienia omawianych procesów i ich powiązań na mapie metabolicznej komórki. Zrozumienie procesów metabolizmu substancji i energii oraz zagadnienia integracji metabolicznej umożliwi studentom zrozumienie mechanizmów homeostatycznych organizmów.Wiadomości te są umieszczone w różnych sekcjach. Ich zbieranie i porządkowanie wymaga od uczniów wysiłku intelektualnego. Dlatego zdecydowano się na zastosowanie warstwowej mapy pojęć do gromadzenia i wizualizacji treści związanych z homeostazą.Item Využití her ve výuce přírodovědných předmětů na ZŠ(Ostravská univerzita, 2024) Večeřová, Markéta; Richtr, VáclavPříspěvek se zabývá využitím různých her při výuce přírodovědných předmětů (chemie, přírodopis) na 2. stupni základní školy. Jednotlivé hry jsou zde popsány, včetně pravidel a návodů na realizaci. Poster obsahuje obrazový materiál k vybraným hrám, včetně ukázek. Součástí příspěvku je také souhrn hodnocení her žáky.Item Mýdlo a zmýdelnění ve středoškolské výuce chemie(Ostravská univerzita, 2024) Žemlička, Matěj; Richtr, VáclavText se zaměřuje na teoretické a praktické aspekty lipidy, přičemž podrobně popisuje jejich chemické vlastnosti, strukturu a aplikace. Lipidy jsou organické molekuly s nízkou rozpustností ve vodě, přičemž hlavními typy jsou tuky a oleje, které se liší ve své chemické struktuře a fyzikálních vlastnostech. Tato práce rovněž popisuje výrobu mýdla prostřednictvím zmýdelnění živočišných tuků, kde je kladeno důraz na procesy chemických reakcí a vzniklý produkt – mýdlo. V teoretické části jsou uvedeny detaily o složení tuků a olejů, včetně rozdělení mastných kyselin na nasycené a nenasycené, a jejich vlivu na skupenství příslušných látek. Praktická část se zaměřuje na laboratorní přípravu mýdla a testování jeho chemických vlastností, včetně pH, rozpustnosti v různých rozpouštědlech a pěnivosti v tvrdé vodě. Text také zahrnuje doporučení pro školní výuku chemie, zaměřenou na aplikaci těchto poznatků ve výuce laboratorních postupů. Celkově text nabízí ucelený pohled na chemii lipidů a její využití v každodenním životě, konkrétně při výrobě mýdla.Item Stanovení vybraných parametrů Ferdinandova pramene a transformace do výuky chemie(Ostravská univerzita, 2024) Hrdlička, Jan; Flosman, PetrChemie je přírodní vědou založenou na experimentu a je tedy vhodné hledat nové možnosti, jak obměnit a doplnit portfolio praktických cvičení, které je možné provádět na školách. Zajímavým zdrojem inspirace může být oblast aplikované analytické chemie. Pokud je cílem analýzy reálný vzorek, který je studentům důvěrně známý, může to také zvýšit jejich zájem.V západních Čechách mohou být takovým vzorkem různé vývěry minerálních vod. Příspěvek je věnován především sledování několika vybraných parametrů Ferdinandova pramene v Mariánských Lázních. Jsou diskutovány jak možnosti využití vybraných postupů jako experimentální činnosti ve výuce chemie, tak hodnocení získaných výsledků, a to i v souvislostech s geografií či biologií.Item Výpočtové úlohy ve výuce chemie na střední škole(Ostravská univerzita, 2024) Sirotek, Vladimír; Šátavová, SimonaPříspěvek se zabývá problematikou výpočtových úloh ve výuce chemie na střední škole. V článku jsou diskutovány výsledky průzkumu, který byl prováděn na základě vyhodnocení jednoduchého testu zadaného studentům a dotazníkového šetření mezi studenty a učiteli chemie na středních školách.Item The Durability of Formal Knowledge and Its Restructuring During Lifelong Learning(Scientia Socialis, Ltd., 2023) Nodzyńska-Moroń, Małgorzata Krystyna; Sirotek, VladimírFormal science education is the last stage of acquiring scientific knowledge for most people. They rely on the knowledge acquired at school for the rest of their lives. Therefore, it is important that formal education changes students' colloquial knowledge into scientific knowledge and is correct. The study decided to test three situations. In the first one, it was examined whether formal education actually displaces the colloquial knowledge of students. In the second, the level of knowledge acquired at school was compared with the level of extracurricular knowledge. The third examined the durability of knowledge acquired at school, i.e. can school knowledge be changed, e.g. through advertising or popular science publications? The main hypothesis of the research was the assumption that school knowledge eliminates erroneous, clichéd beliefs and is permanent over time. The study tested chemical knowledge related to cooking. 472 people participated in the study and an online questionnaire was used. The research built on previous research on the correlation between scientific knowledge and non-scientific beliefs and pedagogical theories on knowledge transfer. The obtained results did not confirm the main hypothesis. Formal school education turned out to be less effective than non-formal education. It seems, therefore, that school education should not focus on facts that students forget and that change during their informal(lifelong) education. Rather, it should focus on the ability to independently construct knowledge.Item Fieldwork in teaching biology(Univerzita Karlova, 2023) Mikołajczyk, Justyna; Nodzyńska-Moroń, Małgorzata KrystynaFieldwork in teaching natural subjects, including biology, is an important element in shaping the skills and attitudes of young people. Therefore, in Poland, in the core curriculum for teaching biology, there is an obligation for biology teachers to conduct "fieldwork education". On the other hand, numerous limitations, including time, organizational and legal difficulties make it difficult for teachers to fulfill this obligation. The article presents the results of research of biology teachers regarding their opinions on fieldwork. It was analyzed how respondents assessed the expected effectiveness of fieldwork, defined their ability and willingness to conduct such activities, and determined what external factors influenced their motivation to conduct such activities.Item Testing techniques pH and their attractiveness in chemical education(Univerzita Karlova, 2023) Nodzyńska-Moroń, Małgorzata Krystyna; Cieśla, Paweł; Sirotek, Vladimír; Štrofová, Jitka; Zimak-Piekarczyk, PaulinaCurrently, in everyday life, the term pH appears frequently in advertisements or on the packages for various products. The definition of pH has changed since the beginning of the 17th century. Currently, the Sørensen definition for pH from the beginning of the 20th century is most often used. However, many students and teachers find the mathematical notation very difficult to understand. Therefore, in education, teachers use various activities to introduce the concept of pH without having to introduce logaritmus and additionally to keep the classes interesting for students. Studies on the attractiveness of pH measurement laboratory classes were carried out. Five different activities of pH testing were investigated among pupils (8-10 years), university students and teachers.Item The influence of alcohol models on students’ perception(Univerzita Karlova, 2023) Nodzyńska-Moroń, Małgorzata Krystyna; Zimak-Piekarczyk, Paulina; Jyż-Kuroś, DanutaStudents find chemistry a complicated subject. Because to understand the properties of how microscopic properties affect macroscopic properties, teachers use explanatory models. In teaching chemistry, we use different types of models of chemical molecules. However, the question arises: are all models equally effective? The research was conducted in 4 classes of upper secondary schools in the third year of study. 68 students took part in the survey. The students were divided into four groups, each using a different model type. It investigated whether working with different models affects students' perception of the structure of mono-alcohol molecules.Item Facts and myths about radiation – based on the statements of high school students(IATED Academy, 2023) Nodzyńska-Moroń, Małgorzata Krystyna; Chrzanowski, Marcin; Siporska, AgnieszkaLarge educational research project, addressed to secondary school students, based on a survey, is being carried out in Poland, the Czech Republic and the United States. In the survey the attitudes, preconceptions and misconceptions of several hundred high school students from the three countries will be assessed. The main themes of the survey are: the concepts of radioactivity, matter and energy. The research will be conducted using a seventy-item questionnaire including the following types of questions: open-ended, multiple-choice questions, True-False and using the Likert scale. The preparation of the tool included many stages, including the Delphi technique.One of the steps includes a screen test on a group of 108 students attending three schools. Schools were chosen according to the Perspektywy ranking - ranking of the thousand best schools in Poland: one school placed in the first fifteenth (School A) and two following it: circa about 300th place (Schools B & C). The presentation will concern the various stages of preparing the research tool with particular emphasis on the screening test.The number of examined students from School A and Schools B & C was equal to 62 and 46, respectively. The paper concerns 3 chosen items related to the comparison of the mass of the nucleus and the whole atom: open-ended, true-false and multiple choice. Significant differences in the knowledge of students regarding the comparison of the mass of the nucleus and the mass of the atom from School A and from Schools B & C were noticed.The correlations between students' responses of all 3 questions have been recognized as weak. It seems to be that the students' knowledge connected to this subject is not fixed. We will also discuss how the students' answers influenced the preparation of the broadened version of the key code and the improvement of items.
