Oleh: Dr. Marsigit, MA
Reviewed by : Margaretha Madha Melissa (09301244013)
As we have seen, emphasizes the realistic mathematics construction of the context of concrete objects as a starting point for students to acquire mathematical concepts. Concrete objects and objects around environment can be used as a context for learning mathematics in building relevance of mathematics through social interaction. Students should be given opportunities to construct and produce mathematics in a manner and language of their own.
Assessment and analysis of learning mathematics that have been recorded into the video tape recorder (VTR) is one way or businesses that can be done by the teacher. Through the VTR is expected of teachers able to learn how to:
1. make the preparation process of teaching and learning in mathematics at junior high school in accordance with the principles of PMRI.
2. develop learning resources for teaching and learning process mathematics at junior high school.
3. develop assessment activities for teaching and learning process mathematics at junior high school in accordance with the principles PMRI.
4. implement the teaching-learning process in mathematics at junior high school in accordance with the principles of PMRI.
Isoda M said, “VTR (Video Tape Recorder) for teacher education and reform movement in Mathematics Education, specifically for developing lesson study has some benefits as: a) short summary of the lesson with emphasis on major problems in the lesson, b) components of the lesson and main events in the class, and, c) possible issues for discussion and reflection with teachers observing the lesson.” The third type is the type that has realistic characteristics bottom-up approach where students develop their own models and then used the model basis for developing formal mathematics. There are two kinds of models that occur
in the process that is a model of the situation and a formal model for mathematical.
in the process that is a model of the situation and a formal model for mathematical.
VTR also has weakness, such as: the limited point of view, not all aspects can be recorded, image quality, the moment of decision image that is not appropriate.
Use of VTR realistic approach to learning mathematics can be gives the following benefits:
1. Teachers have the opportunity to test the concrete objects and environment objects can be used as a learning context mathematics in building mathematical connections through social interaction.
2. Teachers have the opportunity to explore and reflect on the concepts realistic mathematics learning.
3. Teachers have the opportunity to exchange experiences with other teachers about the development of realistic mathematical learning.
4. Teachers have the opportunity to reflect on the preparation of the learning process teaching in junior high school mathematics in accordance with the principles PMRI.
5. Teachers have the opportunity to reflect on the development of sources learning to the learning process in mathematics at SMP in accordance with principles PMRI.
6. Teachers have the opportunity to reflect on development activities assessment for teaching and learning process in mathematics at SMP in accordance with principles PMRI.
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