Reasonings employed by high school and undergraduate students, while solving problems, covering the concepts of solution formation, solubility and recrystallization.

Postgraduate Thesis uoadl:2933139 114 Read counter

Unit:
Κατεύθυνση Διδακτική της Χημείας
Library of the School of Science
Deposit date:
2021-01-21
Year:
2021
Author:
Rigas Panagiotis
Supervisors info:
Μεθενίτης Κωνσταντίνος, Αναπληρωτής Καθηγητής, Τμήμα Χημείας Ε.Κ.Π.Α.
Original Title:
Συλλογισμοί που χρησιμοποιούν φοιτητές και μαθητές Λυκείου κατά την επίλυση προβλημάτων σχετικών με τα διαλύματα, τη διαλυτότητα και την ανακρυστάλλωση.
Languages:
Greek
Translated title:
Reasonings employed by high school and undergraduate students, while solving problems, covering the concepts of solution formation, solubility and recrystallization.
Summary:
In the present work, we study the heuristic reasoning employed by high school students and undergraduate students, while solving exercises, covering the concepts of solution formation, solubility as well as the recrystallization process. The study is based on the modern heuristic-analytic theory of reasoning, which aims to reveal the way in which solvers draw conclusions and make decisions. The research involved 47 students of the 2nd grade of General Lyceum from two different school units in Attica. The first part came from the Experimental Lyceum of Anavryta, while the second came from the 7th General Lyceum of Athens. The total of 42 undergraduate students who were interviewed, were in their first year of study in the Biology department of the School of Science of NKUA (winter academic semester). From each group of solvers, 6 students were voluntarily invited to give semi-structured personal interviews, during which they were asked to explain the answers given to the questions-problems of the worksheet they had completed.
The processing of the worksheet results in conjunction with the analysis of the recorded interviews showed that the majority of both high school and undergraduate students relied upon heuristic reasoning to make decisions under conditions of limited time and knowledge. The three main heuristics found to be used by participants on a regular basis are: one-reason decision making and rigidity from the category of inductive judgements, as well as fluency from the category of fundamental associative processes.
Main subject category:
Science
Keywords:
Heuristic Reasoning, Solution Chemistry, Solubility, Recrystallisation, Thinking Αloud
Index:
Yes
Number of index pages:
2
Contains images:
Yes
Number of references:
123
Number of pages:
137
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