- December 16, 2021- Present: Lecturer at Ramkhamhaeng University.
- February 25-26, 2025: The Conference International Symposium for Science and Mathematics Classroom Teachers (ISSMCT) at SEAMEO RECSAM Campus, Penang in Malaysia
- May 30-June 1, 2018: Annual Pure and Applied Mathematics Conference 2018 at Chulalongkorn University in Thailand.
- July 27-29, 2015: Teaching Technique for Education Seminar 2015 at Saim Reap Teacher College in Cambodia.
- October17-20, 2013: Mathematics Education Seminar 2013 at Yunnan University of Finance&Economics in China.
- November, 2013-January, 2017: Mathematics and Statistics Teacher, Saim Dhurakit Technological College.
- April 2009-Agust 2011: Engineering, Labotron Co., Ltd Thailand, researching the products and advises customer.

- Khatbanjong, S. (2025). Academic achievement in analytic geometry and calculus for teachers about limits and continuity using teaching that emphasizes conceptualization with the GeoGebra program for undergraduate students. Journal of Education Studies, Chulalongkorn University, 53(2).
- Maneechay, P., Khatbanjong, S., Pochai, N., & Vongkok, A. (2025). Combination of the fourth-order Runge-Kutta and an explicit finite difference method for an advection-diffusion equation. Engineering Letters, 33(5), 1251–1258.
- Mahamarn, Y., Peanpedlerd, S., Pakapol, P., & Khatbanjong, S. (2025). A curriculum evaluation for graduate diploma program in teaching profession (New Curriculum, B.E. 2566), Faculty of Education, Ramkhamhaeng University. Journal of Intellect Education (IEJ), 4(2).
- Chumsri, A., Vongkok, A., Aungaudchariya, A., & Khatbanjong, S. (2025). Web-based basic mathematics learning management system for undergraduate students. Journal of Education Studies, Chulalongkorn University, 53(1)
- Maneechay, P., Pochai, N., & Khatbanjong, S. (2024). A vertically averaged groundwater quality measurement with monitored boundary data. IAENG International Journal of Applied Mathematics, 54(2)
- Khatbanjong, S., & Da-oh, K. (2024). Mathematical learning achievement of Grade 8 students on the Pythagorean Theorem using inductive approaches. Journal of Science and Science Education, 7(2).
- Khatbanjong, S., & Suankaew, J. (2024). Development of learning achievement in mathematics on the topic of equality in all respects using Van Hiele theory for Grade 8 students. Journal of Education Academic, Chiang Rai Rajabhat University, 9(1).
- Nimnoi, K., & Khatbanjong, S. (2024). The development of mathematics learning activities on the topic of probability of Mathayomsuksa 3 students using the cooperative learning model, STAD technique. Journal of Teacher Professional Development, 5(1).
- Khatbanjong, S., Mahamarn, Y., Tonuch, T., & Ponerut, T. (2023). Developing mathematical reasoning ability on basic data analysis using inductive and deductive learning activities for undergraduate students. Journal of Educational Technology and Communications, Faculty of Education, Mahasarakham University (JETC), 6(4), October–December.
- Painparadorn, T., & Khatbanjong, S. (2023). The development of the mathematics learning outcome on equality of Mathayom 2 students by using STAD technique. An Online Journal of Education, Chulalongkorn University, 18(2), July–December.
- Khatbanjong, S., & Boonprasong, N. (2023). Developing academic achievement of Mathayom Suksa 4 students on function using the 4 MAT learning method. Journal of Roi Kaensarn Academi, 8(1), 270–286.
- Khatbanjong, S., & Samaler, P. (2022). The development of learning activities on the topic of fraction problems using the KWDL technique of Mathayomsuksa 1 students. Journal of Education Studies, Chulalongkorn University, 50(1), January–March.
- Khatbanjong, S., & Mawan, V. (2021). Artificial intelligence (AI) technology and the categorization of fifth grade students’ academic achievements using K-means clustering learning algorithm. Journal of Education Studies, Chulalongkorn University, 49(2), April–June. https://doi.org/10.14456/educu.2021.3
- Khatbanjong, S., & Yamsang, N. (2016). The development of learning activities for Prathom Sueksa Six students using the STAD method for the addition and subtraction of fractions. Journal of Education Studies, Chulalongkorn University, 44(4), 206–217.
- Khatbanjong, S., & Pochai, N. (2021). Numerical groundwater quality assessment model using two-level explicit methods. IAENG International Journal, 29(1), 183–190.
- Khatbanjong, S., & Pochai, N. (2020). A long-term numerical groundwater quality assessment model using a modified fourth-order finite difference method with Saulyev scheme. Journal of Interdisciplinary Mathematics, 23(7), 1406–1434.
- Khatbanjong, S., & Pochai, N. (2020). Numerical groundwater quality assessment model using a new fourth-order scheme with Saulyev method. Journal of Interdisciplinary Mathematics, 23(7), 1288–1308. https://doi.org/10.1080/09720502.2020.1764696
- Khatbanjong, S., Vanishkorn, B., & Pochai, N. (2018). A mathematical model of contaminated groundwater dispersion measurement. In Proceedings of The Sixth TKU-KMITL Joint Symposium on Mathematics and Applied Mathematics (MAM 2018) (pp. 50–53). Japan.

CMA2108 NALYTIC GEOMETRY AND CALCULS FOR TEACHERS
CMA3101/3111/3205 INNOVATION AND TECHNOLOGY IN MATHEMATICS TEACHING
CMA3104/3114 TEACHING STATISTICS IN SECONDARY SCHOOL
CMA3213/3203 APPLIED MATHEMATICS FOR BASIC CAREER EDUCATION IN SECONDARY LEVEL
CMA4103/4113 NTEGRATION IN TEACHNG MATHERMATICS
CTL5007 TEACHING SEMINAR 2

GDP5001 PRINCIPLES OF EDUCATION AND TEACHING
GDP5007 EDUCATIONAL RESEARCH FOR LEARNING MANAGEMENT AND LEARNER’S DEVELOPMENT
GDP5010 EDUCATIONAL QUALITY ASSURANCE

ปริญญาโท

MED6004 FUNDAMENTAL MATHEMATICS FOR TEACHER1
MED6005 FUNDAMENTAL MATHEMATICS FOR TEACHER2
MED6202 RESEARCH IN MATHEMATICS EDUCATION