Date of Publication


Document Type


Degree Name

Doctor of Philosophy in Science Education Major in Mathematics

Subject Categories



Br. Andrew Gonzalez FSC College of Education


Science Education

Thesis Adviser

Maxima J. Acelajado

Defense Panel Chair

Fe G. de la Rosa

Defense Panel Member

Melecio C. Deauna
Bee Ching U. Ong
Yolando B. Berongue
Blessilda P. Raposa


This study investigates and compares the effects of graphing calculators on the mathematics achievements in two classes in College Algebra at Philippine Normal University during the second semester, SY 1999-2000.The study used two groups: one is the experimental group and the other, the control group. The experimental group used the graphing calculators during the lecture, the discovery phase of the lessons, the exercises and the test, except the posttest while the control group used an ordinary calculator or a scientific calculator for computational purposes only. To measure the achievement in the critical thinking ability of the respondents, the Watson-Glaser Critical Thinking Appraisal was used. The data gathered in this study were tabulated and analyzed using the mean, the standard deviation, t-test for dependent and independent samples, and analysis of covariance with pretest and Math 1 grade as covariates.Results of the study revealed that there was a difference between the pretest means and posttest means for both the experimental and control groups. This implies that learning took place under the two methods of teaching. There was also a significant difference in the achievement of both the experimental and control groups.The researcher concluded that using graphing calculators and using the traditional method of teaching can help improve the critical thinking abilities of the respondents. However, the use of graphing calculator was found more effective in improving the critical thinking abilities than the traditional method of teaching.

Abstract Format






Accession Number


Shelf Location

Archives, The Learning Commons, 12F Henry Sy Sr. Hall

Physical Description

viii, 143 numb. leaves


Graphic calculators; Mathematical ability--Testing; Academic achievement; College freshmen; Algebra

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