Development and Validation of Instructional Modules on Rational Expressions and Variations
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Keywords
Instructional modules, rational expressions, variations, education
Abstract
Modular instruction is an attempt to individualize learning by allowing a student to achieve mastery of one unit of content before moving on to another. Module, as a self-instructional material, can be used as a supplementary material to help the student improve his/her mastery and as means to help the student catch up with the missed lessons. In this study, instructional modules on two content areas of Algebra taught to second year high school students were developed and validated. Specifically, module 1 consisted of 11 lessons on Rational Expressions, and module 2 consisted of nine lessons on Variations. Findings revealed that all the evaluators strongly agreed that the instructional modules satisfied the criteria for evaluating the modules. Meanwhile, the significant change in the pretest and posttest scores of student-participants before and after they were exposed to the modules signify that the modules brought out improvement in their knowledge of Rational Expressions and Variations. Possible replication of the study to cover other topics in Intermediate Algebra is recommended to further support the findings that emerged.
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