DEVELOPMENT AND VALIDATION OF LABORATORY WORKBOOK IN PLANT BIOLOGY
This study aimed to develop and validate the Laboratory Workbook in Plant Biology. It was conducted at Eastern Samar State University during the second semester of school year 2017-2018 with 34 2nd year BSED Biological Science major students and 5 plant biology professors/instructors as respondents. The study used the descriptive-experimental method to describe and evaluate the developed laboratory workbook in Plant Biology using the questionnaire checklist and test results in gathering data. A pretest and posttest was administered to the student users to determine the performance in Plant Biology of the two groups of respondents. They were asked to evaluate the laboratory workbook through the following: format, language, content and evaluation. As to the level of acceptability, science experts rated the laboratory workbook in terms of learning competencies, appropriateness, presentation and organization, accuracy and up-datedness of information. Responses were tallied, tabulated and interpreted with the used of appropriate statistical treatment. Findings of the study showed that the laboratory workbook had a very nice format, very understandable and very appropriate to the target user since it very satisfactorily met the criteria and standard set for its evaluation and assessment. The students exposed to the developed laboratory workbook attained better performance than students taught without the use of the workbook in Plant Biology. The developed workbook contributed to the improvement of students accomplishments in plant biology. It is therefore recommended by the author that the developed laboratory workbook is effective and acceptable for use as instructional material in teaching Plant Biology.
Laboratory Workbook, Instructional Materials, Plant Biology