ENHANCING THE STUDENTS’ ABILITY OF REASONING ON ASPECTS TO udFORMULATE THE COUNTER EXAMPLE THROUGH PROBLEM SOLVING udSTRATEGIES MAKE AN ORGANIZED LIST

摘要

The objective of the investigation was to find out the implementation of problem udsolving strategies make an organized list to enhance the students’ ability of udreasoning on aspects to formulate the counter example through problem solving udstrategies Make an Organized List This research was conducted at SMP udMuhammadiyah 22 Pamulang in academic year 2012/2013. The method of the udresearch used quasi-experimental method with control group post test only design. udThe Subject for this research were 64 students which selected through cluster udrandom sampling technique from the population at the seventh grade students class. udData of the students’ ability to formulate counter example were collected thoroughudtest. The result of the research revealed that the ability of formulating counter udexamples of students who are taught with a strategy the make an organized list udhigher than students taught with conventional strategy. Reasoning abilities in aspects udformulating counter examples of students who are taught with a strategy make an udorganized list gives about 61,33% true or false statement, to make their own udstatements are true examples and counter example 70.94%, found errors on udparticular sentence or statement 62.5%. Conclusion of the research, problem solving udstrategy make an organized list affect the students’ reasoning ability on aspects udformulating counter examples; in which the make an organized list strategy is more udeffective in improving the students’ reasoning ability on aspects formulating counter udexamples than the conventional strategies.