Audiovisual materials have been widely investigated in mathematics education for their capacity to improve learning outcomes and mitigate student disengagement. Therefore, this study aims to evaluate the acceptance of audiovisual materials as instructional aids among eighth-grade students. Adopting a mixed-method approach, the research first involved semi-structured interviews with mathematics teachers to identify key teaching and learning challenges. Based on the insights gained, educational videos were developed, adhering to motivational and didactic criteria. In the final phase, 78 students from a public high school in Ibarra, Ecuador, participated in a Likert-scale survey, guided by the Technology Acceptance Model (TAM), to assess their reception of the videos. The findings revealed that teachers highlighted fear of mathematics, insufficient prior knowledge, and the abstract nature of the content as major obstacles to be addressed. Most students responded positively, considering the videos effective for enhancing their understanding of mathematical concepts and boosting their motivation to learn. This study underscores the potential of audiovisual materials as effective tools to address educational challenges and foster student engagement in mathematics.

Although there are many studies on the main factors that lead to failure in implanting Enterprise I.T. Applications (EITA), EITA projects still have a high failure rate within the different implantation phases. In this literature review, several factors of failure in the implantation of EITA were analyzed, as well as various cases where there was a failed implantation of an EITA, to collect the different common causes and have a basis of recurring factors to be considered for future projects. The method used in the research was a literature review and a search for cases from 2015, where the common point is the failure in the implantation of EITAs. Subsequently, it was found that the factors detailed in the case studies are related to factors reviewed in the literature review, which means that these factors are recurrent and common. Finally, it was concluded that quality, management, time, and financial aspects are the factors that were generally relevant in the cases analyzed and that, despite the type or extent of the project, identifying these factors will determine early on the success or failure of the project.