The clues of the research is to known description of students problem solving ability by applying of Cooperative STAD type by problem solving . Model of study of cooperative STAD type by problem solving is a model to solve mathematics problem that have done by groups giving clues. The clues consist of some solving keys that given a part, each of member groups get a key. Subject of reseach are 48 students of grade XI natural science in senior high school 6 Palembang. Data collecting have done by giving test that content 3 discription question. The results of analysis shown mean of discriptor indicator are 74.34%, average abilty are 79.04 or 85.42% have shown good ability for problem solving. Conclusions of this reseach are learning use study model of Cooperative Problem Solving could be done to practise the ability of student’s problem.DOI: 10.22342/jpm.5.2.598.
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