A SURVEY OF THE ERRORS OF STUDENTS IN GRADES 10 AND 12 WHEN USING VIETA’S FORMULAS TO SOLVE THE ASSOCIATED MATHEMATICAL PROBLEMS

Duong Huu Tong, Bui Phuong Uyen, Ha Hoang Quoc Thi, Nguyen Thi Lai

Abstract


Vieta’s formulas have many applications in the general mathematics program in Vietnam. Indeed, they appear in many forms of mathematical problems, ranging from 9th, 10th and 12th grades. The complexity of the mathematical problems makes students commit many errors when using the Vieta’s formulas to solve them. The sample consisted of 246 students in grades 10 and 12, in which they addressed four questionnaires related to Vieta’s formulas. The results were quite unexpected because the errors of tenth graders also existed for 12th grade students for many different reasons.

 

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Keywords


Vieta’s formulas, error, reason, quadratic equation

References


Hao, T. V. (2015). Algebra 10 (Đại Số 10), Vietnamese Publishing house of Education.

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