Secondary school students' understanding of the mole concept and its use in problem solving (Record no. 21747)

MARC details
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008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
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100 1# - MAIN ENTRY--PERSONAL NAME
Personal name Aljawhari, Mingala Naef
Miscellaneous information Master, Teaching chemistry
245 10 - TITLE STATEMENT
Title Secondary school students' understanding of the mole concept and its use in problem solving
260 ## - PUBLICATION, DISTRIBUTION, ETC.
Place of publication, distribution, etc. Beirut
Name of publisher, distributor, etc. Université Libanaise - Faculté de Pédagogie - Deanship
Date of publication, distribution, etc. 2004
300 ## - PHYSICAL DESCRIPTION
Extent 68 pages
500 ## - GENERAL NOTE
General note النوع : Mémoire
520 3# - SUMMARY, ETC.
Summary, etc. This research attempts to study the conceptions held by students concerning the mole concept and its utilization in problem solving. It describes and compares grade 10 and grade 11 students’ ideas about: 1) the definition of the mole concept according to the international system (SI), 2) explaining the relationship between the mass ratio and the mole ratio of a substance, and 3) solving stoichiometric problems. To do so, a paper-pencil test was composed of three parts: the first part is related to the definition of the mole, the second part is related to the ability to solve problems that relate the amount of substance to masses in a chemical formula, and the third part is related to the ability to solve more complex stoichiometric problems using equations. The results of this study indicate that students develop insufficient understanding of the mole concept and use memorized algorithms to solve the problems. It also identifies the relationship between students’ reasoning abilities and their success in solving problems related to mass and moles. Due to their lack of understanding the mole concept, students use incorrect relations such as equating mole ratio with mass ratio or mole ratio with molar mass ratio. Furthermore, success in mole concept problem solving is directly related to a student’s mastery of mathematics concepts such as scientific notations and division problems.
650 #4 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element حل المشكلات
650 #4 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Cycle Secondaire L’enseignement des Sciences Méthodes d’enseignement
650 #4 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Problem Solving
650 #4 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Résolution de problèmes
650 #4 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element Secondary Education Sciences education Teaching Methods
650 #4 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element المرحلة الثانوية تعليم العلوم طرق التعليم
856 ## - ELECTRONIC LOCATION AND ACCESS
Public note Université Libanaise - Faculté de Pédagogie - Deanship
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type بيانات الهيئة اللبنانية للعلوم التربوية

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