Improving Learning Achievement Using Effective Mix and Match Learning Model

This current study aims to examine the implementation of the mix and match of three learning models i.e. Self-directed learning, Discovery learning, and Collaborative Problem Based learning. Mix and match learning model is performed to optimize the benefits from each models and minimize the weakness. In implementation phase, the learning process was started from self-directed learning models, where students were directed to collect any information regarding the subject from many resources using Web-based Instruction. This method basically involves encouraging students to prepare for the lesson before class. To complete this session, the student make a literature review. In the next session the Discovery learning models was implemented. In this session Picture Prompt presentation technique and some interactive experiences such as asking provocative questions were applied. After this, the Collaborative Problem Based Learning is performed using mix of several techniques i.e. Make a Match, Student Team Achievement Division and Number Heads Together. The Small group discussions model is a part of the Collaborative Problem Based Learning models. In the end of Collaborative learning session, the selected student presented their work. In the last session, every student has to make summarize using their own words. Assessments were performed in end of each session. The research found that the mix and match model effectively improve the student\u27s achievement in cognitive, affective and psychomotor aspect

Pengaruh Iradiasi terhadap Enzim Buah Pisang (Musa Paradisiaca)

The purpose of this study was to investigate the effect of irradition on the activity of pectinesterase, peroxisidase, polyphenol oxidase enzymes and their isoenzymes respectively. Bananas were irradiated at the doses of 0; 0,15; 0,3 and 0,45 kGy.and stored at 22°C and RH 70 - 80%. The results showed that irradition at the dosis of 0,15; 0,3 and 0,45 kGy could reduce pectinesterase activity by 4.52; 16.96 and 18.57% respectively. The activity of peroxidase were reduce by irradiation at the doses of 0,3 and 0,45 kGy by 16.37 and 21.81% and polyphenoloxidase were 19.67 and 24,52% lower than the control. The intensity of irradiated samples were lower than those of control. Irradiation doses of 0,3 kGy could be used to prolong the shelf-life of bananas up to three weeks; the firmness, L, a and b values of this irradiation level were higher than those of the control, and those of the irradiated at the doses of 0.15 and 0.45 kGy up to two weeks