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Impact of Web-based instruction on geometric transformation of trigonometric curves on gifted secondary students
Author
Ng, Boon Kiat
Supervisor
Hu, Chun
Abstract
The purpose of this study is to evaluate the impact of using web-based stimulations and asynchronous online discussion on pupils' understanding of and performance at sketching transformation of Trigonometric curves. The rationale of this study is to explore new instructional methods that could complement the existing approach so as to help improve the pupils' performance at sketching transformation of Trigonometric curves as well as their ability to explain the concepts behind the transformations.
The pupils involved in this study are twenty-nine Secondary Three pupils from the Gifted Education Programme in Dunman High School. The pupils were grouped into teams of three or four and they experimented with the web-based simulation to learn how to perform stretches and translations on Trigonometric curves. The groups also had to decipher the concept behind each transformation through the online forum. A diagnostic quiz was administered to evaluate their ability to sketch transformations and an oral defence, viva, was administered to evaluate their understanding of the concepts behind the transformations. A statistical analysis was done on the quiz and viva results to check for improvement in sketch performance and concept explanation while a source analysis on the online forum contributions was performed to discover how online forum may have helped the pupils to better explain the concepts.
It was found that self-experimentation with web-based stimulation, guided by worksheets, has helped the pupils to improve in their ability to sketch singular as well as combines transformations, while online discussion forum has helped the pupils to improve their concept explanations tremendously. In addition, the pupils were able to derive more varied explanations, than what a teacher normally provides, for the concepts behind each transformation.
The pupils involved in this study are twenty-nine Secondary Three pupils from the Gifted Education Programme in Dunman High School. The pupils were grouped into teams of three or four and they experimented with the web-based simulation to learn how to perform stretches and translations on Trigonometric curves. The groups also had to decipher the concept behind each transformation through the online forum. A diagnostic quiz was administered to evaluate their ability to sketch transformations and an oral defence, viva, was administered to evaluate their understanding of the concepts behind the transformations. A statistical analysis was done on the quiz and viva results to check for improvement in sketch performance and concept explanation while a source analysis on the online forum contributions was performed to discover how online forum may have helped the pupils to better explain the concepts.
It was found that self-experimentation with web-based stimulation, guided by worksheets, has helped the pupils to improve in their ability to sketch singular as well as combines transformations, while online discussion forum has helped the pupils to improve their concept explanations tremendously. In addition, the pupils were able to derive more varied explanations, than what a teacher normally provides, for the concepts behind each transformation.
Date Issued
2004
Call Number
QA531 Ng
Date Submitted
2004