Jenis matematika yang sesuai bagi siswa yang bekerja di doorsmeer dalam menyelesaikan masalah matematis: Sebuah diskusi tentang matematika informal siswa
What kind of mathematics for doorsmeer student fits for in solving a mathematical problem: A discussion about student’s informal mathematics
Abstrak
This research aims to identify student’s informal mathematics and how teachers’ response toward it. This research involved 5 (five) teachers in Junior high school and 1 (one) student in Junior high school who work in doorsmeer company (washing motorbike company). For example, in this research, a doorsmeer student (working for washing motorbike) mathematics, which is considered out of school mathematics (informal mathematics), can solve a daily mathematical problem. However, formal mathematics, which uses by teachers, cannot reach reality solution for the student, even the algorithm is correct. In conclusion, mathematics teachers’ thought that mathematics at school fits for doorsmeer student which means it can be applied in the work of doorsmeer company. However, the way how mathematics by doorsmeer student implemented is not the same of mathematics that teachers’ tough fits for the students.
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