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effects of using graphic calculator in mathematics teaching and ...

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from two Form Four classes <strong>in</strong> a r<strong>and</strong>omly selected school <strong>in</strong> Selangor. The<br />

experimental group underwent learn<strong>in</strong>g <strong>us<strong>in</strong>g</strong> graph<strong>in</strong>g <strong>calculator</strong> while the<br />

control group underwent learn<strong>in</strong>g <strong>us<strong>in</strong>g</strong> conventional <strong>in</strong>struction.<br />

Experiment for Phase II was further carried out for six weeks <strong>in</strong>corporat<strong>in</strong>g<br />

measures <strong>of</strong> mathematical performance, focused on metacognitive<br />

awareness dur<strong>in</strong>g problem solv<strong>in</strong>g <strong>and</strong> <strong>in</strong> addition, measures <strong>of</strong> mental effort<br />

<strong>and</strong> <strong>in</strong>structional efficiency. This phase <strong>in</strong>volved two experimental groups<br />

(n=33) <strong>and</strong> two control groups (n=32) from four Form Four classes <strong>in</strong> one<br />

r<strong>and</strong>omly selected school <strong>in</strong> Malacca. As <strong>in</strong> Phase I, the same learn<strong>in</strong>g<br />

conditions were given for both experimental <strong>and</strong> control groups. F<strong>in</strong>ally,<br />

experiment <strong>in</strong> Phase III was carried out for six weeks <strong>in</strong>corporat<strong>in</strong>g<br />

comparison on two levels <strong>of</strong> <strong>mathematics</strong> ability (low <strong>and</strong> average) <strong>and</strong> two<br />

types <strong>of</strong> <strong>in</strong>structional strategy (graph<strong>in</strong>g <strong>calculator</strong> strategy <strong>and</strong> conventional<br />

<strong>in</strong>struction strategy). Form Four students from one <strong>of</strong> schools <strong>in</strong> Malacca<br />

were the sample for Phase III. Altogether there were four groups <strong>of</strong><br />

students given four learn<strong>in</strong>g conditions vis-à-vis: the average mathematical<br />

ability given the use <strong>of</strong> graph<strong>in</strong>g <strong>calculator</strong>s (n=15), the low mathematical<br />

ability also given graph<strong>in</strong>g <strong>calculator</strong>s (n=19), the average mathematical<br />

ability given the conventional <strong>in</strong>struction (n=16) <strong>and</strong> the low mathematical<br />

ability given also the conventional <strong>in</strong>struction (n=20).<br />

iii

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