摘要：The chart of Indonesian student of mathematical ability development in Program for Internati onal Student Assessment (PISA) event during the last 4 periods shows an unstable movement. PISA aims to examine the ability of children aged 15 years in reading literacy , mathematics literacy , and science literacy . The concept of mathematical literacy is c losely related to several other concepts discussed in mathematics education. The most important is mathematical modelling and its component processes . Therefore the goal of this research is to investigate secondary school students' di fficulties in modeling problems PISA - model level 5 and 6. Qualitative research was used as an appropriate mean to achieve this research goal. This type of research is a greater emphasizing on holistic description, and phenomenon identified to be studied, student s' difficulties in modelling real world problem in PISA model question level 5 and 6 . 26 grade 9 students of SMPN 1 Palembang, 26 grade 9 students of SMPK Frater Xaverius 1 Palembang, and 31 participants of mathematical literacy context event, were involved in this resear ch. The result of investigate s howed that student is difficult to ; (1) formulating situations mathematically, Such as to representing a situation mathematically, recognizing mat hematical structure (including regularities, relationsh ips, and patterns) in pr oblems, (2) evaluating the reasonableness of a mathematical solution in the context of a real - world problem . The students have no problem in solve mathematical problem they have constructed.
关键词：Mathematical model; ; Mode ; l ; ling competence; PISA; PISA ; Questions ; level 5 and 6 ; Students'difficulties in solving ; PISA ; - ; model Questions. Mathematics Literacy
