The effect of video materials on the students' achievement on polynomial functions

• Main Author: Lagamayo, Estrellita F.
• Format: text
• Language: English
• Published: Animo Repository 1998
• Subjects: Polynomial operators; Functions; Teaching > Aids and devices; Academic achievement; Performance; Students achievements; Video tapes in education; Video recordings; Mathematics
• Online Access: https://animorepository.dlsu.edu.ph/etd_masteral/1908; https://animorepository.dlsu.edu.ph/cgi/viewcontent.cgi?article=8746&context=etd_masteral
• Institution: De La Salle University

The study investigates the effect of using video materials as an instructional aid in learning concepts, graphs and properties of polynomial function, on the achievement of senior students of Manila High School during the school year 1997-1998. It seeks to determine whether the performance of the students in the experimental group and the control group measured in terms of the mean achievements differ before and after the experiment. It also determines whether the performance measured in terms of the posttest-mean achievement on polynomial functions differ between the experimental and the control groups. Two intact classes in Mathematics IV handled by the researcher were included in the study. The two groups were identified according to their IQ test results. They were assigned at random into the control and experimental groups. Both groups were pretested prior to any lectures and discussions on polynomial functions. After the pretest, similar lectures, discussions, examples and exercises on polynomial functions were given to the experimental and the control groups except that the experimental group was treated with the use of video materials to supplement the traditional teaching method using chalk and board. The posttest was administered to both groups. The results were analyzed statistically using the t-test between two dependent samples and the analysis of covariance (ANCOVA) with one covariate, the pretest. The level of significance was set at 0.05. The findings showed that there was a significant difference between: the pretest and the posttest mean scores of the experimental group between the pretest and the posttest mean scores of the control group. It also showed that the experimental group performed significantly better than the control group in the posttest on polynomial functions. Based on the findings derived from this study, the following conclusions are drawn: (1) Since the results of the posttest of the experimental group was significantly higher than that of the control group, then the use of video materials as an instructional device is more effective than the traditional method using chalk and board. (2) Since the posttest mean scores of the experimental and the control groups are significantly higher than their pretest it may be concluded that there is a gain in the performance of both groups. Hence, learning took place. (3) It may also be concluded that learning could still be achieved even if the traditional method of instruction is used. Since it is evident that participants of this study were very much benefited with the use of video materials as an instructional device, it is recommended that: (1) mathematics teachers may use video materials as instructional device whenever possible and feasible (2) a similar study be conducted using students of other levels and using other topics in mathematics (3) the study may be replicated using larger sample size so as to verify conclusions drawn.