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Ugotavljanje razumevanja agregatnih stanj vode in procesa zmrzovanja vode na submikroskopski ravni po vertikali izobraževanja z uporabo očesnega sledilca
Slapničar, Miha (Author), Tompa, Valerija (Author), Veldin, Manja (Author), Glažar, Saša (Author)

URLURL - Presentation file, Visit http://pefprints.pef.uni-lj.si/5007/ This link opens in a new window

Abstract
Submikroskopske predstavitve so na vseh ravneh izobraževanja pomembne pri ugotavljanju razumevanja kemijskih pojmov na ravni delcev. Namen raziskave je bil ugotoviti razumevanje agregatnih stanj vode in procesa zmrzovanje vode na submikroskopski ravni po vertikali izobraževanja. V vzorec kvantitativne raziskave je bilo vključenih 31 učencev 7. razreda osnovne šole, 29 dijakov 1. letnika gimnazije in 20 študentov smeri kemija na Pedagoški fakulteti Univerze v Ljubljani. Merski inštrument raziskave je predstavljal preizkus znanja s štirimi avtentičnimi problemskimi nalogami, v katere so bile vključene animacije gibanja delcev. Preizkus znanja je bil predvajan na računalniškem zaslonu kot zaslonske slike. Pri individualnem reševanju nalog so bili očesni premiki spremljani z očesnim sledilcem, pridobljeni odgovori pa sproti zapisovani. Rezultati raziskave kažejo, da uspešnost pri zapisovanju pravilnih utemeljitev izbire submikroskopske predstavitve narašča po vertikali izobraževanja le pri trdnem agregatnem stanju vode (učenci 9,7 %; dijaki 13,8 %; študenti 55,0 %). Pogostost napačnih razumevanj gibanja delcev vode v trdnem agregatnem stanju pada po vertikali izobraževanja (učenci 51,5 %; dijaki 41,4 %; študenti 15,0 %). Napačna razumevanja gibanja delcev v tekočem (učenci 25,9 %; dijaki 30,9 %) in plinastem agregatnem stanju vode so prisotna samo pri učencih in dijakih (učenci 6,4 %; dijaki 6,8 %). Napačna razumevanja lastnosti gibanja delcev v trdnem agregatnem stanju pri nalogi zmrzovanja vode se po vertikali izobraževanja povečujejo (9,6 % učencev; 10,3 % dijakov; 15,0 % študentov). Glede na rezultate raziskave bi bilo potrebno v osnovnih in srednjih šolah razvijati razumevanje 3-D animiranih submikroskopskih predstavitev agregatnih stanj vode in prehodov med njimi.

Language:Slovenian
Keywords:agregatna stanja vode
Work type:Scientific work (r2)
Tipology:1.06 - Published Scientific Conference Contribution (invited lecture)
Organization:PEF - Faculty of Education
Year:2017
Number of pages:433-447
COBISS.SI-ID:11937865 Link is opened in a new window
Views:303
Downloads:104
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Secondary language

Language:English
Title:Identification of understanding of states of water at submicroscopic level across education vertical via eye tracking
Abstract:
Submicroscopic representations are important at all educational levels for establishing the students’ understanding of chemical concepts at the particulate level. The research aim was to establish the understanding of the states of water and of the process of water freezing at the submicroscopic level across the education vertical. The quantitative research sample was composed of 31 seventh graders of elementary school, 29 students of the first year of gymnasium and 20 students of the Chemistry Study Course at the Faculty of Education of the University of Ljubljana. The measurement instrument of the research was a knowledge test with four authentic problem tasks, which included animations of particle movements. The knowledge test was displayed on the computer screen as screen images. In individual task solving, eye movements were monitored by an eye tracker, and the responses were simultaneously recorded. The research results show the increase in successful noting of the correct justifications for the choice of a submicroscopic representation across the education vertical only in the case of a solid state of water (primary students 9,7 %, secondary students 13,8 %, and faculty students 55,0 %). The frequency of incorrect understanding of the movement of water particles in the solid state decreased across the education vertical (primary students 51,5 %, secondary students 41,4 %, and faculty students 15,0 %). The misunderstanding of the motion of particles in the liquid (primary students 25,9 %; secondary students 30,9 %) and in the gaseous state of water was present only in primary students and in secondary students (primary students 6,4 %; secondary students 6,8 %). The misunderstanding of the properties of particle movements in the solid state in the task of water freezing increased across the education vertical (9,6 % of primary students, 10,3 % of secondary students, 15,0 % of faculty students). According to the research results, the understanding of 3-D dynamic submicrorepresentations of states of water and its changes of state should be developed in primary and secondary schools.

Keywords:education vertical

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