### THE EFFECT OF CONTEXTUAL TEACHING AND LEARNING ON STUDENTS’ CONCEPTUAL UNDERSTANDING OF GEOMETRY

#### Abstrak

Mathematics becomes more meaningful when it is relevant to real life and students are more engaged in mathematics learning when it relates to them. Contextual teaching and learning (CTL) is a teaching concept that connects knowledge to real-world situations. The present study aims to investigate the effect of CTL on students’ conceptual understanding of geometry. This experimental study employed a pre-test-post-test control group design. The samples are all eighth-grade students in Junior High School 4, Sakti Pidie, A census sampling technique was used in this study since all members of the population served as samples. The experimental class and the control class were randomly selected from the two available classes. The experimental class was taught geometry using CTL while the control class was taught conventionally. Data were collected from pre-test and post-test that were declared valid. Data analysis was performed using the Kolmogorov-Smirnov test for normality test, the Levene test for homogeneity test, and t-test for the hypothesis testing. The results revealed that students taught using CTL have better conceptual understanding of geometry compared to those who were taught conventionally. It implies that the implementation of contextual teaching and learning (CTL) on geometry learning is effective to promote students’ learning.

**Keywords:** Contextual teaching and learning, conceptual understanding, geometry learning.

#### Kata Kunci

#### Teks Lengkap:

PDF#### Referensi

Johnson, E. (2002). Contextual teaching and learning. Thousand Oaks, CA: Corwin Press.

Glynn, S. M., & Winter, L. K. (2004). Contextual teaching and learning of science in elementary schools. Journal of elementary science education, 16(2), 51-63.

Goodroe, J. T. (2010). Teacher perspectives of contextual teaching and learning with respect to student engagement (Doctoral dissertation, UGA).

Hendawati, Y., Pratomo, S., Suhaedah, S., Lestari, N. A., Ridwan, T., & Majid, N. W. A. (2019, October). Contextual teaching and learning of physics at elementary school. In Journal of Physics: Conference Series (Vol. 1318, No. 1, p. 012130). IOP Publishing.

Selvianiresa, D., & Prabawanto, S. (2017, September). Contextual teaching and learning approach of mathematics in primary schools. In Journal of Physics: Conference Series (Vol. 895, No. 1, p. 012171). IOP Publishing.

Neftyan, C. C. A., Suyanto, E., & Suyatna, A. (2018). The influence of learning using contextual teaching and learning approach to physics learning outcomes of high school students. International Journal of Advanced Engineering, Management and Science (IJAEMS), 4(6), 446-450.

Sufianto, S. (2019). The Effect of Contextual Teaching And Learning (CTL) Learning Model on The Ability Of Concept Understanding Class VII Students of SMP 16, Kota Bengkulu. Jurnal Pendidikan Matematika Raflesia, 4(1), 19-28.

Amelia, P., & Niniwati, N. (2019). Improving Motivation and Learning Outcomes With Contextual Teaching and Learning Strategies for Students in the Mathematics Education Study Program. Edumatica: Jurnal Pendidikan Matematika, 9(02), 14-22.

Purba, G. I. D., & Surya, E. (2020, February). The improving of mathematical understanding ability and positive attitudes of unimed fmipa students by using the contextual teaching learning (CTL) approach. In Journal of Physics: Conference Series (Vol. 1462, No. 1, p. 012019). IOP Publishing.

Khaldun, I. (2020, February). Influence of the contextual teaching and learning model against student learning outcome. In Journal of Physics: Conference Series (Vol. 1460, No. 1, p. 012128). IOP Publishing.

Welerubun, R. C., Wambrauw, H. L., Jeni, J., Wolo, D., & Damopolii, I. (2022). Contextual teaching and learning in learning environmental pollution: the effect on student learning outcomes. Prima Magistra: Jurnal Ilmiah Kependidikan, 3(1), 106-115.

Marini, A. R. I. T. A. (2016). Enhancement of student learning outcomes through the use of contextual teaching and learning. PONTE International Journal of Sciences and Research, 72(11), 26-43.

Dewi, A. E. R. D., & Alam, A. A. (2021). The Effect of Contextual Teaching and Learning Approach and Learning Creativity on Student Learning Outcomes. Journal of Educational Science and Technology (EST), 7(3), 261-268.

Dewi, P. Y. A., & Primayana, K. H. (2019). Effect of learning module with setting contextual teaching and learning to increase the understanding of concepts. International Journal of Education and Learning, 1(1), 19-26.

Yeni, Y. R., Syarifuddin, H., & Ahmad, R. (2019, August). The effect of contextual teaching and learning approach and motivation of learning on the ability of understanding the mathematics concepts of grade V student. In IOP Conference Series: Earth and Environmental Science (Vol. 314, No. 1, p. 012064). IOP Publishing.

Ruto, R., Mema, A., Nduru, M. P., & Ota, M. K. (2021). Contextual teaching and learning approach in social science: its role to encourage pupils' cognitive learning achievement. Journal of Research in Instructional, 1(1), 43-52.

Obikezie, M. C., Abuchukwu, A. A., & Chikendu, R. E. (2021). Effect of Contextual Teaching-Learning Approach on Students’ Retention in Chemistry in Secondary Schools in Anambra State. International Journal of Trend in Scientific Research and Development (IJTSRD) 5 (3) 404, 408.

Mentari, W. N., & Syarifuddin, H. (2020, May). Improving student engagement by mathematics learning based on contextual teaching and learning. In Journal of Physics: Conference Series (Vol. 1554, No. 1, p. 012003). IOP Publishing.

Qudsyi, H., Wijaya, H. E., Widiasmara, N., & Nurtjahjo, F. E. (2018, April). Contextual teaching-learning method to improve student engagement among college students in cognitive psychology course. In International Conferences on Educational, Social Sciences and Technology (pp. 634-643). Fakultas Ilmu Pendidikan UNP.

Sarwinda, K., Rohaeti, E., & Fatharani, M. (2020). The development of audio-visual media with contextual teaching learning approach to improve learning motivation and critical thinking skills. Psychology, Evaluation, and Technology in Educational Research, 2(2), 98-114.

Ekowati, C., Darwis, M., Upa, H. M. D., & Tahmir, S. (2015). The Application of Contextual Approach in Learning Mathematics to Improve Students Motivation at SMPN 1 Kupang. International Education Studies, 8(8), 81-86.

Azainil, A., & Ramadiani, R. (2019). Contextual Teaching Learning with Discovery Methods to Increase Motivation, Creativity, and Outcomes Learning science Students in elementary school. International Journal of Innovation, Creativity and Change, 5(3), 115-131.

Lestari, F. P., Ahmadi, F., & Rochmad, R. (2021). The Implementation of Mathematics Comic through Contextual Teaching and Learning to Improve Critical Thinking Ability and Character. European Journal of Educational Research, 10(1), 497-508.

Kusumah, Y. S., Sabandar, J., & Herman, T. (2015). Mathematical Critical Thinking Ability through Contextual Teaching and Learning Approach. Indonesian Mathematical Society Journal on Mathematics Education, 6(1), 53-62.

Nurhana, F., & Abdullah, A. A. (2021). Effectiveness of contextual teaching and learning on the ability to mathematical relational understanding in Junior High School. Eduma: Mathematics Education Learning and Teaching, 10(2), 198-205.

Hobri, H., Septiawati, I., & Prihandoko, A. C. (2018). High-order thinking skill in contextual teaching and learning of mathematics based on lesson study for learning community.

Khotimah, R. P., & Masduki, M. (2016). Improving teaching quality and problem solving ability through contextual teaching and learning in differential equations: A lesson study approach. JRAMathEdu (Journal of Research and Advances in Mathematics Education), 1(1), 1-13.

Afni, N. (2020, July). Contextual teaching and learning (CTL) as a strategy to improve students mathematical literacy. In Journal of Physics: Conference Series (Vol. 1581, No. 1, p. 012043). IOP Publishing.

Maryani, N., & Widjajanti, D. B. (2020, July). Mathematical literacy: How to improve it using contextual teaching and learning method?. In Journal of Physics: Conference Series (Vol. 1581, No. 1, p. 012044). IOP Publishing.

Yeni, Y. R., Syarifuddin, H., & Ahmad, R. (2019, August). The effect of contextual teaching and learning approach and motivation of learning on the ability of understanding the mathematics concepts of grade V student. In IOP Conference Series: Earth and Environmental Science (Vol. 314, No. 1, p. 012064). IOP Publishing.

Jelatu, S., & Ardana, I. (2018). Effect of GeoGebra-Aided REACT Strategy on Understanding of Geometry Concepts. International journal of instruction, 11(4), 325-336.

Yildiz, A., & Baltaci, S. (2016). Reflections from the Analytic Geometry Courses Based on Contextual Teaching and Learning through GeoGebra Software. Online Submission, 6(4), 155-166.

Williams, D. L. (2007). The what, why, and how of contextual teaching in a mathematics classroom. The Mathematics Teacher, 100(8), 572-575.

Hudson, C. C., & Whisler, V. R. (2007). Contextual teaching and learning for practitioners. Journal of Systemics, Cybernetics and Informatics, 6(4), 54-58.

Sears, S. J. (2002). Contextual teaching and learning: A primer for effective instruction. Phi Delta Kappa International.

Crawford, M. L. (2001). Teaching contextually. Research, rationale, and techniques for improving student motivation and achievement in mathematics and science. Texas: Cord.

Clements, D. H. (2003). Teaching and learning geometry. A research companion to principles and standards for school mathematics, 151-178.

K.S.W. Brinus, A.P. Makur, F. Nendi. The Influence of Contextual Learning Models on Understanding Mathematics Concepts of Junior High School Students. Mosharafa: Journal of Mathematics Education.Vol.8(2): 261-272. STKIP Santu Paulus, NTT, 2019. DOI: https://doi.org/10.31980/mosharafa.v8i2.439

Rusyda.N.A, D.S. Sari. The Influence of the Application of Contextual Teaching And Learning Models on the Ability to Understand Mathematical Concepts of Junior High School Students on Lines and Angles Materials. National Journal of Mathematics Education. Vol.1 (1): 150-162. UPI, Bandung. 2017. DOI: http://dx.doi.org/10.33603/jnpm.v1i1.243