COMPARISON BETWEEN THE USE OF QUADRATIC FORMULA AND COMPLETING THE SQUARE METHODS IN SOLVING QUADRATIC EQUATIONS BY SENIOR SECONDARY STUDENTS.Ojo O. A.; Gbolagade A. M. Department Of General Studies (maths),
Oyo State College Of Agriculture, Ighoora.
Department Of Mathematics, Emmanuel Alayande
College Of Education, Oyo.
The study examined the use of the “quadratic formula method” and “completing the square method” in solving quadratic equations on Senior Secondary students’ Mathematics. It also determined the differential effects between boys and girls when solving quadratic equation by using the methods of quadratic formula and completing the square. Data were collected from 200 S.S.2 students using Quadratic Equation Mathematics Achievement Test (QEMAT). Two null hypotheses were generated for the study. Results from the study revealed that students taught with quadratic formula performed better than the students taught with completing the square method. Male students performed better than the female students in the use of quadratic formula and completing the square method. It is recommended that teacher should explain the concept of completing the square method better to the students rather than emphasizing only on the quadratic formula.