### THE IMPACT OF ALGEBRA AND TRIGONOMETRY TO CALCULUS PERFORMANCE

#### Abstract

The study aims to determine the impact of Algebra and Trigonometry to the students’ performance in Calculus. To achieve this objective, the researcher considered the following: (1) identification of the major topics in Differential Calculus and Integral Calculus with the respective applications of Algebra and Trigonometry; (2) computation of the coefficients of correlation to determine the relationship of the students’ performance in the Pre-Calculus and Calculus courses; and (3) documentation of the significant findings of related investigations conducted in different countries. One hundred (100) engineering students participated in the study where final grades in Algebra, Trigonometry, Differential Calculus and Integral Calculus were elicited from them. The results of the study confirmed what the researchers of previous studies assumed that the deficiencies in Algebra and Trigonometry skills continue to impact adversely to Calculus students. The low rating of the students in Calculus was seen to be attributed to the poor performance in the pre-requisite subjects. As documented from related investigations, it is further concluded that students generally lack both conceptual and procedural understanding of Calculus because of the observed deficiencies in their mathematical content knowledge in the Pre-Calculus courses.

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