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Bratislava two days with the didactics of mathematics
No full textV príspevku informujeme o hybridne organizovanej konferencii Dva dni s didaktikou matematiky na pôde FMFI UK v Bratislave. Stručne opisujeme pozadie jej vzniku, programovú štruktúru a kľúčové diskutované témy na jej šiestom ročníku
15 views on school mathematics, how we see it
No full textRecenze publikace autorů Františka Kuřiny a Nadi Vondrové 15 pohledů na školskou matematiku: jak to vidíme, kterou vydalo v roce 2022 nakladatelství Pedagogické fakulty Univerzity Karlovy
National Meeting of Secondary School Teachers: “How to Teach Mathematics at the Secondary School”
No full textLaserem řízená manipulace s hmotou v nanoměřítku
No full textORCID ID 0000-0002-9865-1826The current habilitation thesis deals with the production of nanomaterials
and their modification by means of laser-mediated strategies.
The topic is addressed by analyzing a collection of twelve
scientific articles, of which I am the principal author or one of the
principal co-authors. The articles were prepared and published during
the solution of various consecutive projects having as a central
aim the study and development of nanomaterials for life sciencerelated
applications, of which I was part of the solving team with
the role of a senior researcher.
The collection is divided into three main groups that represent the
research lines I have been following during my scientific carrier; element
rearrangement in nanocomposites, nanoalloy formation and
the junction of multiple elements, and nanomaterials morphology
control. The analysis of every articles group provides an in-depth
view of the different strategies I have developed together with my
collaborators at the TUL and foreign institutions to face the most
difficult challenges related to the laser-mediated synthesis and modification
of materials, i.e., the lack of control over the element
composition and distribution within the laser-produced materials,
and the difficulty to manipulate their morphology. This analysis
discusses topics such as laser modification of nanocomposites,
hybridization between noble metals and semiconductors, junction
of multiple elements in single systems or reshaping of micro and
nanomaterials. The questions that still exist in each research line
are presented, and the proposals I suggest to face these challenges
objectively are explained. Finally, the relevance of these topics
is reviewed within the framework of the applications that derive
from their implementation and how further developments in these
fields can impact our society’s progress
Spatial imagination and visualization skills of the future teachers at elementary schools
No full textV príspevku chceme poukázať na potrebu zvyšovania priestorových schopností ako jednej zo zložiek matematickej gramotnosti v príprave učiteľov primárneho vzdelávania. Cieľom výskumnej časti bolo identifikovať a následne analyzovať chyby a postupy študentských riešení s akcentom na porozumenie, schopnosť vizualizácie a grafické znázornenie jedného neštandardného stereometrického problému. Výskumnú vzorku tvorilo 48 študentov učiteľstva pre primárne vzdelávanie. V rámci analýzy sa ukázala silná väzba študentov na obrázok v zadaní, študenti preferovali priestorové grafické znázornenie jednotlivých situácií v čiastkových úlohách, ukázalo sa vážne neporozumenie v určení objemu kocky v neštandardnej situácii a problémy s čítaním s porozumením. Zároveň prezentujeme možnosti využitia dynamického softvéru GeoGebra ako aj manipulačných aktivít pri modifikácii uvedeného problému vzhľadom k vekovej skupine žiakov.In the paper, we wanted to point out the need to increase spatial skills as one of the components of mathematical literacy in the education of future primary school teachers. The aim of the research was to identify and then to analyze mistakes and procedures of student solutions with an emphasis on understanding, the ability to visualize and graphically illustrate one unusual stereometric problem. The sample consisted of 48 future primary school teachers. The analysis showed a strong student bond to an image, students preferred spatial graphical representation of individual situations in partial tasks, there has been a serious misunderstanding in determining the cube volume in a non-standard situation and reading comprehension problems. The possibilities of using GeoGebra software and manipulative activities in problem solving are presented too
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No full textEditorial
Get PDFPrůměrný učitel vypráví. Dobrý učitel vysvětluje. Výborný učitel ukazuje. Nejlepší učitel inspiruje. Charles Farrar Brown
Transformation of foam material in the presence of external influences
No full textZadaní bakalářské práce se věnuje netradičnímu užití molitanové pěny v sochařských formách. S přihlédnutém k jejím specifickým vlastnostem. Struktura, textura nebo její snadná forma opracovatelnosti. Cílem je materiál používat tak, aby navozoval dojem klasických materiálů jako je například kámen, dřevo nebo beton. Zabývat se různými technikami zpracování molitanu, jako je řezání, ohýbání, vrstvení nebo granulování, pro dosažení požadovaných tvarů a struktur. Umělecká instalace, pracuje se záměrem přeměny a transformaci a zpochybnění tradiční představy o trvanlivosti a stabilitě.The assignment of the bachelor thesis is devoted to the unconventional use of foam in sculptural forms. Taking into account its specific properties. Structure, texture or its ease of workability. The aim is to use the material in such a way that it gives the impression of classic materials such as stone, wood or concrete. To deal with different techniques of processing foam, such as cutting, bending, layering or granulating, to achieve the desired shapes and structures. Art installation, working with the intention of transformation and transfiguration and challenging traditional ideas of durability and stability