A thesis submitted to the Faculty of Science, Unjversity of the
Witwatersrand, Johannesburg, in fulfillment of the requirements for
the degree of Doctor of Philosophy in Science.
March 1995 / This thesis reports on school teaching and learning problems in the
area of chemical re&ctivity and on an attempt to overcome some of
these problems with an in-service course for teachers.
rhase 1 of this research was a study of the conceptions of aspects
of reactivity, rates of reaction and chemical equilibrium held by
secondary school students.
The nature and origin of the conceptual di:Eficltlties, i.n the above
areas were investigated.
The concepts of ret,ctivity and reactivity se.rd.e s are formally
introduced at a standard 8 level. These concepts form a springboard
for the understanding of more formal quantitative worl< done i.n rates
of reaction and chemical equilibrium at a standard 10 level.
Two multiple-choice questionnaires, a reactivity qUestionnaire and a
i'a'Ceand (.,quilibrium qUestionnaire, were designed to probe for the
nature and ori9i.n of views held )y st<mdard 8 & 10 students
respectively.
The views of both the standard 8 & 10 students on aspects of
react~vity and reactivity series Were investigated using the
reactivity ql.ltlstionnaire.The views of a sample of 'Jtandard 8
students were also probed during interview sessions conducted at
selected schools.
standard 10 students views about concepts related to aspects of
rates of reaction and chemical equilibrium, were also investigated
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:wits/oai:wiredspace.wits.ac.za:10539/20457 |
| Date | 10 June 2016 |
| Creators | Bapoo, Abdool Hamid |
| Source Sets | South African National ETD Portal |
| Language | English |
| Detected Language | English |
| Type | Thesis |
| Format | application/pdf, application/pdf, application/pdf |
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