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dc.contributor.authorSUNARDI, Sunardi
dc.contributor.authorYUDIANTO, Erfan
dc.contributor.authorSUSANTO, Susanto
dc.contributor.authorKURNIATI, Dian
dc.contributor.authorCAHYO, Rahmad Dwi
dc.contributor.authorSUBANJI, Subanji
dc.date.accessioned2020-05-28T06:08:00Z
dc.date.available2020-05-28T06:08:00Z
dc.date.issued2019-04-01
dc.identifier.urihttp://repository.unej.ac.id/handle/123456789/99093
dc.description.abstractThis research aims to describe the anxiety of grade 9 students to solve geometry problems based on the IDEAL stages, that is, identify, define, explore, act, and look back. The subjects were three students who each had one student at each level, namely, visualization, analysis, and informal deduction. The data were collected through tests and interviews. To guarantee the validity and reliability of the research, the triangulation technique was used. The findings and conclusions were as follows: students’ visualization anxiety could be observed in the explore stage, which was caused by their confusion to use the Pythagorean theorem in which only one side was known, and in the act stage, which was caused by the thinking barrier as they were unable to write the solution and add the explanation; students’ analysis anxiety could be observed in the act stage, which was caused by their confusion to ponder over the working time and the use of a wrong method, and in the look-back stage, which was caused by their uncertainty and worry for giving incorrect answers; and students’ informal deduction anxiety appeared in the act stage, which was caused by the thinking barrier as they were unable to describe the use of proportion of base and perpendicular of a right triangle.en_US
dc.language.isoenen_US
dc.publisherInternational Journal of Learning, Teaching and Educational Research Vol. 18, No. 4, pp. 171-185, April 2019en_US
dc.subjectAnxietyen_US
dc.subjectIDEAL Stagesen_US
dc.subjectGeometryen_US
dc.subjectVan Hieleen_US
dc.titleAnxiety of Students in Visualization, Analysis, and Informal Deduction Levels to Solve Geometry Problemsen_US
dc.typeArticleen_US
dc.identifier.kodeprodiKODEPRODI0210101#Pendidikan Matematika
dc.identifier.nidnNIDN0001055408
dc.identifier.nidnNIDN0016038502
dc.identifier.nidnNIDN0016066301
dc.identifier.nidnNIDN0005068207


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