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1.
Razvijanje prostorske predstavljivosti z uvedbo 3D-modeliranja v osnovni šoli.
Andrej Šafhalter, 2016, doktorska disertacija

Opis: Razvijanje prostorske predstavljivosti z uvedbo 3D-modeliranja v osnovni šoli Doktorska disertacija je sestavljena iz dveh delov, teoretičnega in empiričnega. Teoretični del obravnava nekatera dognanja drugih avtorjev, ki predstavljajo povezavo z empiričnim delom. Tako so predstavljene značilnosti: prostorskega zaznavanja, spomina in mišljenja, prostorske predstavljivosti in vpliv spola nanjo, učnih stilov in hemisferičnosti možganov, testov hemisferne dominacije, kognitivnega razvoja s poudarkom na prostorski predstavljivosti, inteligentnosti in večvrstne inteligentnosti, testov inteligentnosti in prostorske predstavljivosti, tehničnega načrtovanja v osnovni šoli ter 3D-modeliranja in vizualizacije. V empiričnem delu je prikazana raziskava o vplivu 3D-modeliranja na prostorsko predstavljivost. Pri tem smo na začetnem stanju kontrolirali spol, razred, oceno pri TIT/NIT, izkušnje s poznavanjem programa za 3D-modeliranje, zaznavni stil, oceno prostorske sposobnosti, oceno hemisferičnosti in dosežke na začetnem preizkusu iz prostorske predstavljivosti. Po eksperimentu smo kontrolirali učinke eksperimenta glede na razlike v dosežkih na končnem preizkusu iz prostorske predstavljivosti med eksperimentalno in kontrolno skupino ter napredek učencev eksperimentalne skupine z vidika prostorske predstavljivosti. Na osnovi 35 raziskovalnih vprašanj je bilo postavljenih 35 hipotez. Preverjanje hipotez je bilo razdeljeno v tri sklope: (A) hipoteze, vezane na začetno stanje, (B) hipoteze, vezane na končno stanje, in (C) hipoteze, vezane na razlike med začetnim in končnim stanjem eksperimentalne skupine. V sklopu A so bile potrjene tri hipoteze, tri so bile zavrnjene, v sklopu B so bile potrjene vse tri hipoteze in v sklopu C je bilo potrjenih vseh deset hipotez. V raziskavi je bilo zajetih 16 spremenljivk, sama raziskava pa je temeljila na eksperimentalni metodi empiričnega pedagoškega raziskovanja. Pedagoški eksperiment je potekal v dveh šolskih letih, 2011/2012 in 2012/2013. Raziskovalni vzorec je zajemal učence enajstih slovenskih osnovnih šol, v katerih se je izvajala interesna dejavnost 3D-modeliranje. V eksperimentalni skupini je bilo 95 učencev, v kontrolni pa 101. Sodelovali so učenci od 6. do 9. razreda, 107 je bilo učencev moškega, 89 pa ženskega spola. V eksperimentalno skupino so bili vključeni učenci, ki so izbrali 3D modeliranje kot interesno dejavnost in so jo obiskovali eno uro na teden med šolskim letom. Kontrolno skupino so sestavljali učenci, ki dejavnosti 3D modeliranje niso obiskovali. V večini primerov so bili to sošolci učencev eksperimentalne skupine. Podatki so bili izbrani na osnovi: osnovnih podatkov o učencih, začetnega in končnega preizkusa iz prostorske predstavljivosti, samoocenitvenega vprašalnika o učno-zaznavnih stilih, samoocenitvenega vprašalnika o večvrstni inteligentnosti in samoocenitvenega vprašalnika »Tvoj stil učenja in razmišljanja«. Bistvena ugotovitev je bila, da 3D-modeliranje vpliva na izboljšanje prostorske predstavljivosti pri učencih, medtem ko med spoloma ni bilo ugotovljenih značilnih razlik.
Ključne besede: 3D-modeliranje, prostorska predstavljivost, kognitivni razvoj
Objavljeno: 21.03.2016; Ogledov: 858; Prenosov: 131
.pdf Celotno besedilo (3,48 MB)

2.
Učni načrt
Franko Florjančič, Srečko Glodež, Gorazd Fišer, Drago Slukan, Andrej Šafhalter, 2013, slovar, enciklopedija, leksikon, priročnik, atlas, zemljevid

Ključne besede: učni načrti, tehnika
Objavljeno: 21.12.2015; Ogledov: 293; Prenosov: 7
URL Celotno besedilo (0,00 KB)
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3.
Developing spatial ability using 3D modeling in lower secondary school
Andrej Šafhalter, Srečko Glodež, Boris Aberšek, Karin Bakračevič Vukman, 2014, izvirni znanstveni članek

Opis: In recent years 3D modeling has been increasingly utilized during product design in lower secondary schools as well. Its greatest advantage over classical technical drawing and 2D drawing software lies in the fact students are able to observe the object they are designing from all the viewpoints of a virtual three-dimensional space. Since thinking and visualization in the process of object design also appear in three dimensions, the mental manipulation and guesswork required from students in order to add another dimension to an object pictured on a level plane are no longer necessary. Additionally, 3D modeling has a range of contributions to the cognitive development of children, which was also the subject of this research. The central question raised was whether students are able to improve their spatial ability by using modeling tools. The research included 196 students aged between 11-15 years, of which 95 were placed in the experimental group and 101 in the control group. Spatial ability was measured using pre-test and post-test.
Ključne besede: 3D modeling, cognitive development, spatial abilities, visualization
Objavljeno: 15.12.2017; Ogledov: 53; Prenosov: 2
.pdf Celotno besedilo (681,51 KB)

4.
Developing spatial visualization with 3D modeling
Andrej Šafhalter, Srečko Glodež, Karin Bakračevič Vukman, 2012, izvirni znanstveni članek

Opis: The research was carried out in 20 11 among 22 pupils from 14-15 years old. The purpose of the pilot study was to determine the influence of 3D modeling on the spatial visualization of pupils, as well as the gender difference in the spatial visualization of the tested pupils and the progress of this visualization in individual genders. ln addition, it tried to determine whether the sensory style of the pupils, visual. auditory or kinesthetic, influences spatial perception and the development of spatial visualization. Pupils were divided into two groups, the test group and the control group. Pupils in the test group attended a 3D modeling extra-curricular activity for twelve teaching hours in the second evaluation period of the 2010/2011 school year. Spatial visualization was determined with a modified spatial visualization test. namely before the extra-curricular activity and afterwards. The modified test consisted of different spatial visualization tests: PSVT: R, MeT, MRT, DAT: SR. and tests of rotation within a plane. For 3D modeling exercises pupils used the open-source software Google SketchUp. None of the tested pupils have encountered the mentioned software before. After a second testing, the test group showed greater progress in solving spatial visualization tasks in comparison with the control group, while gender differences were minimal. The results of the spatial visualization test were also compared with the sensory style of pupils, which was filled out by all the pupils included in the study. ln the 2011/2012 school year a broader study is underway, involvlng almost two hundred pupils of various elementary schools in Slovenia.
Ključne besede: spatial visualization, 3D modeling, perception styles
Objavljeno: 15.12.2017; Ogledov: 55; Prenosov: 9
.pdf Celotno besedilo (656,47 KB)

5.
Spatial ability, 3D modelling and styles of thinking in relation to brain hemisphere dominance
Andrej Šafhalter, Srečko Glodež, Karin Bakračevič Vukman, 2013, izvirni znanstveni članek

Opis: The progress of neuroscience and the understanding of children's styles of thinking are opening up new teaching styles that take into account differences in individual cognitive perception. Students can be classified into three distinctive perceptive types, according to the pronounced activity of one cerebral hemisphere in their thinking and information processing: left-hemisphere, right-hemisphere, and integrative type that does not exhibit a considerable dominance of one particular hemisphere. The purpose of the research was to establish differences in the 3D modeling encouraged progression of spatial ability between the left-hemisphere, right-hemisphere and integrative types of students. Computerized 3D modeling employed during technical extra-curricular activity in lower secondary school (grades 6 to 9) may affect the spatial ability of students, which according to other studies, appears to be predominantly connected with the right brain hemisphere. Research was conducted among a variety of lower secondary school students across Slovenia aged 11 15 years. Data on spatial ability and its development was collected using a hybrid spatial intelligence test conducted on two separate occasions, while assessment of the learning perception type of students depending on hemispheric dominance was obtained using a self-evaluation questionnaire. The 3D modeling of technical objects and objects drawn in orthographic or isometric projection was done with the software Trimble SketchUp.
Ključne besede: cognitive development, spatial ability, 3D modeling
Objavljeno: 19.12.2017; Ogledov: 49; Prenosov: 6
.pdf Celotno besedilo (669,06 KB)

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