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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/657

Title: Alternative Conceptions of Eight Chemical Concepts of General Secondary and Preparatory Students Of Addis Ababa
Authors: Sileshi, Yitbarek
Advisors: Dr. Temechegn Engida
Keywords: Alternative Conceptions
Particulate nature of matter
Macro and micro-properties
Conservation of mass
Equation and stoichiometry
Changes of state
Copyright: 2003
Date Added: 21-Apr-2008
Publisher: Addis Ababa University
Abstract: The purposes of the study were to identify and compare the alternative conceptions of eight chemical concepts held by grade 10 and 12 students of Addis Ababa. The eight chemical concepts of study were particulate nature of matter, macro and microproperties, conservation of mass, mole, equation and stoichiometry, changes of state, gas and solutions. Open-ended pilot chemical concepts inventory was used to generate the alternative conceptions relevant to the grade levels. From the findings of the pilot study it was found that the students held diverse alternative conceptions. Those alternative conceptions with high frequencies were used as destructors in the final version of the multiple-choice questions of the inventory. For comparison of the extent of alternative conceptions percent and t-test were used. Finally comparing the two grade levels in generally it was found that grade 12 students alternative conceptions on the concepts studied were not statistically significant in most of the chemical concepts as expected compared to grade 10 students.
Description: A thesis Submitted to the School of Graduate Studies of Addis Ababa University In Partial Fulfillment of the Requirement for the Degree of Master of Arts in Curriculum and Instruction
URI: http://hdl.handle.net/123456789/657
Appears in:Thesis - Curriculum & Instruction

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