PENGARUH PENDEKATAN OPEN ENDED TERHADAP KEMAMPUAN BERFIKIR KREATIF MATEMATIS

Abstract

The ability of mathematical creative thinking is one of the capabilities is needed by human resources to undertake the development of the Indonesian nation. It  can be manifested through a mathematical education with an open - ended approach. The purpose of this study is to determine the effect of open-ended approach to the ability to think creatively mathematically on the seventh grade students of SMP Wahidiyah in academic year 2016/2017 and to find out how much the influence. This research is experimental research with pre experiment research and with one group pre test-post test design. This research was conducted in VII class of Wahidiyah Junior High School by taking one class as sample taken by random sampling technique, that is VII class B of  Wahidiyah Junior High School. The instrument used is a matter of open-ended  test  with  an  essay  form  based  on  indicators  of  mathematical  creative  thinking,  namely  thinking  fluency, flexibility  and  original.  Pre  test  is  finished  to  determine  the  initial  ability  to  think  creatively  mathematically  students before being given treatment and post test is finished to determine the ability to think creatively mathematically students after being given treatment. Based on the results of N-gain test calculation of the pre test and post test, the category of students' mathematical creative thinking ability is moderate with a value of 0.6. Then from the results of the test of paired simples t test, students' mathematical creative thinking ability increased by 20.50 with thitung= -10.41 and ttable= -2.026. While  from the results of simple  linear regression testing,  it can be seen that the effect of open-ended approach to the ability of mathematically creative thinking of seventh grade students of Wahidiyah get the value  "+" with equation Ŷ = 66.46 + 0.26X and the big influence is 19.25%.