The aim of the paper is to determine the effect of the developed differentiation approach related to
mathematics education of gifted students going to secondary school when compared with the programme of
noticing individual differences applied in Science Art Centre on achievement and creative thinking skills of gifted
students. In the present paper, in the scope of quantitative research, the model of pre test-post test with control
group was used. The working group of the research consists of twelve 6th grade gifted students going to Science Art
Centre in Istanbul. When the experimental group to whom the activities designed based on differentiated approach
were applied compared with the control group to whom the activities designed related to individual differences
noticing programme were applied, achievement scores, creative thinking skills based on fluency, flexibility,
originality and elaboration scores and creative thinking skills based on curiosity, imagination, risk-taking and
complexity increased in a significant way.