Developing the Field Research-based Mangroves Supplementary Books in Aceh Tamiang for Preservice Biology Student Humairoh Asyari(a*) Mufti Sudibyo(b) Ely Djulia(b)
a)Student Postgraduate of Biology Education State University of Medan Indonesia
*humairoasyari[at]gmail.com
b) Lecturer Postgraduate of Biology Education State University of Medan Indonesia
Abstract
The aim of this study was to produce the field-research mangroves supplementary books in Aceh Tamiang which were suitable for use by undergraduate students in the Ecology course. The method applied a Research and Development (R&D) adapted from Thiagarajan (4D) model consisting of defining, designing, developing and disseminating stages. The result of field research was employed to develop the product. The supplement book developed are validated by material expert lecturers, learning design experts, layout design experts, and assessed by Ecology lectures and students of the Biology departement at the State University of Medan. The results in developing the mangroves supplementary books based on material experts consisting of material and presentation aspects obtained the mean score of 86.60% in a very good/feasible category. Meanwhile, based on learning design experts obtained the mean score of 93.20% in a very good/feasible category. Likewise, the book graphics aspect based on the layout design experts obtained the mean score of 91.30% in a very good/feasible category. Responses towards books from lecturers also showed a very good/feasible category with an overall percentage of 90.26%. The results of students based on individual, small group and limited field tests obtained the mean score of 97.9%, 89% and 90.95%, respectively in a very good/feasible category. These results indicated that the supplementary books that has been developed was very good/feasible. This product effectiveness could be seen from the gain score of 0.52 in a moderate category. It can be concluded that the use of supplement books developed is effective and had a good effect on the success of the students^ learning processes to improve their understanding and cognitive abilities so that supplement books can be used as additional teaching materials for lecturers, students, and readers in general.
