Open AccessAnalysis of student’s proof construction on matrix determinants
Author(s) -
D. N. O. Sari,
Hapizah,
Scristia Scristia
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1480/1/012060
Subject(s) - mathematical proof , mathematics education , class (philosophy) , statement (logic) , matrix (chemical analysis) , test (biology) , process (computing) , computer science , calculus (dental) , mathematics , epistemology , artificial intelligence , programming language , medicine , philosophy , paleontology , materials science , geometry , dentistry , composite material , biology
This research is a descriptive qualitative research which aims to describe the construction of student evidence on the determinant matrix material. Construction of evidence is compiling evidence from a statement based on the definitions and rules used. The research subjects were students of class XI IPA Palembang 11 Public High School consisting of 42 people. The learning process takes place in accordance with the steps of direct learning. The data collection technique used is a written test consisting of three problem descriptions. The data collected was analyzed by evaluating the evidence from the results of student work consisting of four assessment categories as follows: valid arguments, proofs and proofs that were completed ( K 1 ) valid arguments there were mathematical manipulation errors in the proof process ( K 2 ), valid arguments but there are mathematical manipulation errors in the process of proof and proof of unfinished ( K 3 ), empirical arguments, invalid or incomplete ( K 4 ). Student proof construction in K 1 category was 34.52%, K 2 category was 16.67%, K 3 category was 22.62%, and K 4 category was 26.19%.