Indonesia Conference Directory

This research is aimed at investigating mathematic reasoning ability of junior high school students in South Lampung. The method of this research was descriptive. To collect data, this research administers an essay test that assesses students- mathematic reasoning ability based on six indicators, namely: (1) Work according to the rules (2) Arrange the proof (3) Transductive (4) Analogy (5) Conjecture (6) Estimating the answer In addition to the essay test, data are also collected through teachers- online questionnaires and students- interviews. The subject of this research were selected randomly, consisting of 24 mathematic teachers (four teachers given interviews) and 70 nine-grade students in South Lampung from several high, medium and low-ability schools. The result of this research showed that the average mathematical reasoning ability of students is still relatively medium to low. Students are only able to complete basic mathematical calculations based on certain rules given, but based on the classification of reasoning indicators it was concluded that students mathematical reasoning abilities were medium and low.