S. Triyani, I.K. Budayasa, S.M. Amin
To recognize the creative thinking process of students in problem solving of fraction in elementary school needed the task which is possible to support student's creative thinking. The task has to be suitable with the objective or the goal to be measured, and fulfill the validity and reliability as an assessment instrument. In this research, the task is designed so that it can explore student's creative thinking process with indicator of fluency, flexibility and novelty. The task is designed in open ended problem so that student can use many strategies or give many answers. The designed task is about dividing some cakes to some people so that each person gets the same part. Descriptive-Qualitative research is conducted to understand that the designed task is valid and reliable. The rational analysis is done descriptively from the written data which is made by evaluator (researcher, colleagues and teachers), from the result of written task experiment and interview based task to students at 5th grade of SDN Kertajaya Surabaya and students at 5th grade of SDN Pacar Keling V Surabaya. Its result is the "standard" prototype of task as an assessment instrument to support student's creative thinking process and also some other findings. © 2018 Published under licence by IOP Publishing Ltd.
Department of Mathematics, Faculty of Mathematics and Natural Science, State University of Surabaya, Indonesia; Mathematics Education, State University of Surabaya, Indonesia
