S.H. Nasution, A. Qohar, Susiswo
This article discussed the interactive task development of the area and the perimeter of a rectangle to decrease the anxiety of secondary students in doing Mathematics task. The purpose of this development was producing an interactive task of rectangle area that was valid and effective to decrease the students' anxiety in doing mathematics task. The development consists of three phases, they were: (1) Analysis phase, (2) design phase, and (3) development phase. The product that developed was validated and tested in a small scale with five trial subjects. The validator concluded that the validation product was valid. Furthermore, the trial result in small scale concluded that the product could decrease the anxiety of secondary students in doing Mathematics task. © 2019 Published under licence by IOP Publishing Ltd.
Mathematics Department, Universitas Negeri Malang, 5 Semarang Street, Malang, Indonesia
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