E-Learning in the Teaching of Mathematics: An Educational Experience in Adult High School Moreno Guerrero, Antonio José Aznar Díaz, Inmaculada Cáceres Reche, María Del Pilar Alonso García, Santiago Emerging methodology Educational innovations E-Learning Educational experimentation Adult Students We acknowledge the researchers of the research group AREA (HUM-672), which belongs to the Ministry of Education and Science of the Junta de Andalucía and is registered in the Department of Didactics and School Organization of the Faculty of Education Sciences of the University of Granada. Currently, the e-learning method, due to the period of confinement that is occurring due to COVID-19, has increased its use and application in the teaching and learning processes. The main objective of this research is to identify the effectiveness of the e-learning method in the teaching of mathematics with adults who are in high school, in contrast to the traditional expository method. The study developed is quantitative, descriptive and correlational. The research design is quasi-experimental, with a control group and an experimental group. The results show that the use of the e-learning method has a positive influence on motivation, autonomy, participation, mathematical concepts, results and grades. It can be concluded that the e-learning method leads to improvement in adult students who are studying the mathematical subject in the educational stage of high school, provided that it is compared with the expository method. Therefore, this method is considered effective for its implementation in adults. 2020-07-15T11:50:41Z 2020-07-15T11:50:41Z 2020-05 info:eu-repo/semantics/article Moreno-Guerrero, A. J., Aznar-Díaz, I., Cáceres-Reche, P., & Alonso-García, S. (2020). E-Learning in the Teaching of Mathematics: An Educational Experience in Adult High School. Mathematics, 8(5), 840. [doi:10.3390/math8050840] http://hdl.handle.net/10481/62988 10.3390/math8050840 eng http://creativecommons.org/licenses/by/3.0/es/ info:eu-repo/semantics/openAccess Atribución 3.0 España MDPI