Effectiveness of GeoGebra in Developing the Conceptual Understanding of Definite Integral at Gongzim Ugyen Dorji Central School, in Haa Bhutan
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Asian Journal of Education and Social Studies 10(4): 60-65, 2020; Article no.AJESS.60967 ISSN: 2581-6268 Effectiveness of GeoGebra in Developing the Conceptual Understanding of Definite Integral at Gongzim Ugyen Dorji Central School, in Haa Bhutan Kado1* and Nim Dem2 1 Gongzim Ugyen Dorji Central School, Ministry of Education, Post Office Box 15001, Haa, Bhutan. 2 Katsho Lower Secondary School, Ministry of Education, Post Office Box 15001, Haa, Bhutan. Authors’ contributions This work was carried out in collaboration between both authors. Author Kado designed the study, performed the statistical analysis, wrote the protocol and wrote the first draft of the manuscript. Author ND managed the literature searches. Both authors read and approved the final manuscript. Article Information DOI: 10.9734/AJESS/2020/v10i430276 Editor(s): (1) Dr. Bashar H. Malkawi, University of Sharjah, United Arab Emirates. Reviewers: (1) Altaf Ahmad Bhat, Islamic University of Science and Technology, India. (2) Alice Dhliwayo, Solusi University, Zimbabwe. (3) Hafte Amsalu Kahsay, Wollo University, Ethiopia. Complete Peer review History: http://www.sdiarticle4.com/review-history/60967 Received 28 June 2020 Accepted 01 September 2020 Original Research Article Published 15 September 2020 ABSTRACT As recommended by the Education Blueprint 2014-2020, education system in Bhutan transformed from traditional instructions to technology-enriched and enabled teaching and learning environment with adoption of emerging and relevant technology to produce the globally competent learners. The integration of educational technology in the teaching and learning of definite integral creates a conceptually rich learning environment. From this perspective, this study aims to ascertain the effectiveness of a computer-assisted instruction method using GeoGebra in developing the conceptual understanding of definite integral for grade 12 students. This study employed a quasi-experiment static-group comparison design with 60 students from Gongzim Ugyen Dorji Central School in Haa. The students were divided into two equal groups. Group ‘A’ used the GeoGebra software, while group ‘B’ used the conventional method to learn definite integral. The data were collected through Definite Integral Knowledge Test. An Independent sample t-test was employed using the Statistical Package for the Social Sciences (SPSS 22.0). Findings of the study showed that students who were taught using GeoGebra _____________________________________________________________________________________________________ *Corresponding author: Email: kadoscs@education.gov.bt;
Kado and Dem; AJESS, 10(4): 60-65, 2020; Article no.AJESS.60967 outperformed those who learned through conventional methods. The results confirmed that GeoGebra software is capable of enhancing and significantly improving students’ conceptual understanding of definite integral. Keywords: Calculus; definite Integral; conceptual understanding; GeoGebra. 1. INTRODUCTION In literature, there is broad theoretical and experimental evidence to support that limit, The ideas of the calculus were independently derivative, and integral are epistemologically th discovered by Newton and Leibnitz in 17 difficult concepts for the learners, while the century. Calculus means, “Small Stones” concept of definite integral is even harder for because it is like understanding something by learners [7, 8, 9]. Learners could correctly use looking at small pieces [1]. It is divided operational knowledge to manipulate the into two branches, differential and integral algebraic functions symbolically, but they fail to calculus. Differential calculus concerns interpret meaning. In a study that explored with how things change with respect students’ understanding of definite integral to time, while integral calculus integrate the concept, [9] found that most students’ do not small pieces together to find how much is there have sufficient conceptual understanding of [2] definite integral, their dominant knowledge was the procedural knowledge and their ability for Calculus is considered as vital topics in multiple representation of concepts were limited. mathematics due to widespread application [10] administered a questionnaire that aimed at across the multidisciplinary fields such as investigating students’ understandings of the biological sciences, physical sciences, concepts associated with the definite integral as engineering, social sciences, and economics [3]. well as their computation skills. He found that Considering its significance, it is paramount to students’ understanding of definite integral is focus the teaching and learning of integral rather instrumental or mechanical. Despite the calculus on developing the relational wealth of literature available in this field in understanding/conceptual understanding instead international context, there are limited academic of instrumental or mechanical understanding. discourse in the Bhutanese context that focus on From our search of the literature, it is clear that developing the conceptual understanding of new calculus courses should place less definite integral. Thus, this research attempts to emphasis on complex skills and emphasize enhance students’ conceptual understanding of conceptual development [4].They also definite integral using the GeoGebra. recommended future research to focus on enhancing the conceptual development GeoGebra is open-source software developed by as this understanding can have a profound Markus Hohenwarter in 2002 for teaching and impact on students’ ability to solve in definite learning Mathematics from primary to the integral. university level [11]. It combines many aspects of different mathematical packages, and Despite the importance of the emphasizing the dynamically joins Geometry, Algebra and teaching and learning of calculus on conceptual Calculus. The numerous calculus- related development, the conventional teaching and interactive worksheets and methods developed learning of definite integral that relies on symbols by teachers and researchers are available and notations, has been the preferred method of (www.geogebra.org). Based on the site, calculus instructions for decades. There is a GeoGebra users have reached 100 million body of evidence that suggest that teaching and students, while GeoGebra researchers based on learning of definite integral focus more on Google Scholar have 15,800 published scientific computational process rather than underlying papers [3]. concepts that resulted in routine algebraic manipulations [5,6] . Thus the traditional Studies have shown that an improvement in approach of teaching and learning helps to calculus concept can be achieved by integration develop the skills of manipulating algebraically, of educational technology in teaching and understanding instrumentally and memorizing the learning as it have potential to have positive formulae instead of comprehending conceptual impact on students’ conceptual understanding of or relational proficiencies. calculus[3, 12].Realizing the efficacy of 61
Kado and Dem; AJESS, 10(4): 60-65, 2020; Article no.AJESS.60967 technology enriched and enabled learning of efficacy of GeoGebra in mathematics in environment , Bhutan Education Blueprint 2014- general, calculus in particular. 2020 recommended a shift in educational system by leveraging ICT to produce globally competent 1.1 Objectives of the Study learners to address the need of fourth industrial revolution[13]. Subsequently, Ministry of This study has two main objectives: Education launched its education ICT master plan called iSherig, on May, 2019, to harness the i. Developing the Conceptual or Relational potential benefit of ICT in teaching and learning Understanding of Definite Integral by creating a platform for effective ii. To compare the conceptual knowledge communication, enabling access to information of students in treatment and control and knowledge, and conceptually rich groups learning environment where students construct their own knowledge, visualize and experiment 1.2 Research Questions [14]. What is the impact of GeoGebra software on the As enshrine in our Education Blue print 2014- achievement of conceptual understanding of the 2020, teachers in Bhutan embarked the journey definite integrals? of embracing educational technology to enhance teaching and learning. The educational 2. MATERIALS AND METHODS technology like GeoGebra software chosen as a teaching method has the potential to visualize This study used a quasi-experimental static- the conceptual definition of definite integral as group comparison design to compare the the limiting process. Further support is given by effectiveness of the GeoGebra in developing the [3] that generally asserts that GeoGebra is a conceptual understanding of definite integral for digital tools that helps to develop the concept the students who received GeoGebra enriched image of definite integral and helps to visualize instructions and students who received traditional the abstract concept algebraically, numerically instructions. This method was the best approach and graphically. The embedded mixed method as it attempts to study the effect of the treatment design study showed that the computer assisted on intact groups rather than being able to instructions method using GeoGebra had randomly assign participants to the experimental significant influence on teaching and learning or control groups [17, 18]. outcome of definite integral. Additionally, this study found to facilitate conceptual learning of The participants consist of 94 students from the definite integral [15]. [16] conducted a quasi- grade 12 mathematics students at Gongzim experimental study to investigate the efficacy of Ugyen Dorji Central School. The cluster random developing conceptual understanding and sampling was adopted to select 60 out of 94 procedural knowledge of 124 high school students from 3 sections. The students were then students in Indonesia. The finding revealed that divided into two groups; one was a treatment treatment group showed significant gained in group and the other was the control. Students in conceptual knowledge compared to control the treatment group were taught definite integral group. using the GeoGebra software. Students in the control group were taught through normal In nutshell, it is clear from the extensive conventional learning. evidences in literature that students’ knowledge was rather an instrumental or mechanical as they A Definite Integral Knowledge Test (DIKT), know how to manipulate the algebraic expression consisting of six questions modified from BHSEC symbolically but had complexity in elucidating the Mathematics Book-II for Class XII students of meaning. The present study was designed to Bhutan were used to collect the data (Malhotra, enhance learners’ conceptual or relational Gupta, & Gangal, 2020). . Instrument was piloted understanding in definite integral. Based on to ensure its reliability and validity. The average literature research, no similar study was Item objective Congruence (IOC) was 0.89, conducted in Bhutan; therefore, our study sheds validating the appropriateness for the study. The light on the efficacy of digital tools like GeoGebra reliability of the instrument was proven high with having significant impact for acquiring conceptual item reliability of 0.88. Comparative statistical knowledge in definite integral. This study also analysis was done using the t-test. The serves as stepping stone for further investigation independent sample t-test was used to compare 62
Kado and Dem; AJESS, 10(4): 60-65, 2020; Article no.AJESS.60967 the learning achievement between the control experimental and control group as shown in the and experiment group. The inferential t-test with Table 3. p 0.05). Additionally Levene’s test for equality applied to these groups to identify differences of variances of scores for two groups (EG& CG) caused by the treatment. were conducted as shown in the Table 2. An independent sample t-test conducted for The Levene’s test indicated that the assumption comparison of post-test scores between of homogeneity of variance of pre-test was met experimental and control group showed as value is greater than 0.05 ( (1,62) = significant mean difference between EG ( = 6.571, = 0.78) .However, the variation of post- 56.95, = 4.66 ) and CG (M = 23.83, = test scores for both the groups was not same as 10.52); (42.730) = 16.276, = 0.000(two tailed). p-value is less than 0.05 ( (1,42.73) = The magnitude of the differences in the means 17.714, = 0.00). Thus, the assumption of equal (mean variances had been violated. difference = 33.125,95% : 29.057 37.193) was very high 3.1 Comparison of Pre-test and Post-test (eta squared = 0.91). This indicates that there was a statistically significant difference in post- Scores of DIKT test scores between experimental and control group. The test scores of an experimental group An independent sample t-test was conducted to were significantly higher than the test scores of determine the difference in DIKT between the the control group. Table 1. Test of normality with one-sample kolmogorov-smirnov test Pretest-EG Posttest-EG Pretest-CG Posttest-CG N 32 32 30 30 Kolmogorov-Smirnov Z .978 .944 .986 1.406 Sig. (2-tailed) .294 .335 .285 .038 Significant level: >0.05—no significant, 0.05—no significant, 0.05—no significant,
Kado and Dem; AJESS, 10(4): 60-65, 2020; Article no.AJESS.60967 4. DISCUSSION AND CONCLUSION COMPETING INTERESTS The results of the independent sample t-test Authors have declared that no competing indicated that there were significant differences interests exist. in DIKT between the experimental and control group. Students in the treatment group had REFERENCES higher conceptual knowledge at post-test compared to the control group. This is because 1. Malhotra OP, Gupta SK, Gangal A. GeoGebra aided instruction supported students’ BHSEC Mathematics Book-II For Class XII learning meaningfully and conceptually. Students of Bhutan. New Delhi: Vikas Moreover, it had potential to visualize and Publishing House Private Limited; 2020. concretize abstract nature of definite integral. 2. Integral calculus. (n.d.). Encyclopedia This finding is consonance with the study done Britannica. by [19] asserted that GeoGebra mediated https://www.britannica.com/science/integra instructions effectively promote the conceptual l-calculus development of Riemann integral. The other 3. Arini FY, Dewi NR. GeoGebraAs a Tool to significant rise in post test scores can be Enhance Student Ability in Calculus. KnE attributed to ability of GeoGebra to represent the Social Sciences. 2019;205–212. abstract concept graphically. It has been Available:https://doi.org/10.18502/kss.v3i1 experimentally demonstrated GeoGebra 8.4714 was an effective tools for teaching and learning 4. NCTM. Procedural Fluency in calculus as it allows students to actively Mathematics. National Council of construct their knowledge, multidimensional Teachers of Mathematics; 2014. visualization of concepts and Available:https://doi.org/10.1073/pnas.160 experimentation[20]. 9287113 5. Lasut M. Application of information The one possible reason for significant computer-based learning in calculus improvement of the result was attributed to package learning. International Journal of potential of GeoGebra to make the connection Scientific and Research Publication. between concept image and concept definition of 2015;5(2). definite integral. The study conducted by [21] in 6. Theodosis Z, Pamfilos P, Christou C, Taiwan for the first-year calculus students at Maleev R, Jones K. Teaching introductory university, revealed that the development of calculus: Approaching key ideas with visualization ability of students, increases dynamic software. Conference on students' performance in solving the Excellence in Teaching and Learning problems in the definite integral. The Mathematics, (p. 9). United Kingdom; findings also indicated that students taught 2007. through multi-dimensional approaches, like the 7. Dergisi SB, Del A, Kelimeler A. visualization of concepts graphically and Mathematics Teacher Candidates’ Multiple algebraically, were able to connect the concept Representation and Conceptual- image and concept definition, leading to Procedural Knowledge Level in Definite significant improvement in their learning. This is Integral. Gaziantep University Journal of in line with our study where concepts were Social Sciences. 2010;9(3):581–605. developed with computer-assisted graphing 8. Orton A. Students’ understanding of tools. integration. Educational Studies in Mathematics. 1983;14(1): 1–18. In summary, this research can be considered to Available:https://doi.org/10.1007/BF00704 be a significant step in adopting GeoGebra in 699 teaching and learning of the definite integral in 9. Serhan D. Students’ understanding of the Bhutanese context. Moreover, this results of the definite integral concept. International study adds to the growing body of evidence that Journal of Research in Education and GeoGebra is an effective educational technology Science. 2015;1(1):84–88. for enhancing the conceptual understanding of Available:https://doi.org/10.21890/ijres.005 the definite integral. Thus, it is paramount to 15 embrace GeoGebra as supplementary tools for 10. Mahir N. Conceptual and procedural teaching and learning calculus in general, performance of undergraduate students in definite integral in particular. integration. International Journal of 64
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