SCIENCE EDUCATION IN SCHOLARLY PERIODICALS: TRENDS AND PROSPECTS

This editorial paper describes the history, problems and ideas for future development of the present journal: <i>Chemistry: Bulgarian Journal of Science Education</i>. In recent years the old pedagogical disciplines have amalgamated in the new comprehensive...

DEVELOPMENT OF THE PERSONAL REFLECTION OF STUDENTS WHO STUDY MOLECULAR BIOLOGY, GENETICS AND CELLULAR ENGINEERING TECHNOLOGIES

The presented material is an attempt of examining the dynamic of the personal reflection amongst 15-17-year-old students who study molecular biology, genetics and cellular engineering biotechnologies. This is a longitudinal educational research. In the study...

PERSPECTIVES ON TECHNOLOGY ENHANCED LEARNING AND TEACHING FOR AN EXCITING LEARNING EXPERIENCE

The scope for learning subjects in our own way via flexible learning module is relevant in this age of tablets to capture the excitement of science. The paradigm shift in globalized learning using multiple sources is reflected in the recent trends, practices...

COLORFUL EXPERIMENTS FOR STUDENTS: SYNTHESIS OF INDIGO AND DERIVATIVES

In order to enhance the interest for organic chemistry among undergraduate students, the synthesis of indigo and three derivatives are described. In this way, students can see the influence of aromatic substituent groups. The syntheses of indigo, 5,5’-indigo...

THE FIRST BOOK IN CHEMISTRY IN BULGARIAN (1871): TRUE AUTHORS AND SOURCES

The first book in <i>Chemistry in Bulgarian is Agricultural organic and inorganic chemistry: popular written for schools and people</i>. It is compiled by the teacher D. Enchev, who used it as a textbook in 1871. The book is recorded in the name of its com...

ISOELECTRONIC MOLECULES AND IONS OF p-ELEMENTS

Similarities in electronic structures lead to notable similarities or a gradual change in a regular way of many properties of isoelectronic molecules and ions, such as stability, chemical reactivity, and molecular geometry. There are isoelectronic species...

OBSERVING CHANGE IN POTASSIUM ABUNDANCE IN A SOIL EROSION EXPERIMENT WITH FIELD INFRARED SPECTROSCOPY

Soil erosion has been studied extensively in the last decades. Studies on soil particle movement through chemical tracers were mostly based on the use of radioactive elements. These however have a limited half-life, and are highly toxic and expensive to meas...

SIMPLE EXPERIMENTS FOR BEGINNERS AT HOME

Идеята на помагалото „Лесни, интересни и безопасни опити по химия у дома“ е да създаде условия на децата (на възраст 9–13 години) да станат начинаещи изследователи в областта на природните науки. Книгата цели те да се мотивират и да извършват лесни и безопас...

PERSONAL OR COLLECTIVE KNOWLEDGE: HARRY COLLINS’ KNOWLEDGE NOTIONS OF TACIT KNOWLEDGE AND OF THE INDIVIDUAL AS AN EPISTEMIC PARASITE

Harry Collins argues that tacit knowledge (TK) should not all be seen as a form of personal knowledge, but that rather a very significant form of TK, collective TK (CTK), is located in society, as the brains of humans within a society are connected in a way...

TZAR’S CAVE

SCHOOL LABORATORIES AND EQUIPMENT