Low-cost videos for learning mathematics by teaching

Technology plays an important role in everyday life and can be used in education. Video is a source of material that can play an important role in the teaching and learning field. Using videos engages students, aids student retention of knowledge, motivates interest in the subject matter, and illustrates the relevance of many concepts. In this chapter, the authors describe two teaching experiences involving videos, where the students made a video about solving a concrete mathematical problem. In this video, the students should explain the problem resolution to their colleagues (playing the role of teacher). The results of the impact of this kind of project in the students' motivation are also presented.FEDER/COMPETE/-NORTE2020/POCI/FCT funds through grants UID/EEA/00147/2013; UID/ IEEA/00147/ 006933-SYSTEC, PTDC-EEI-AUT-2933-2014116858-TOCCATA, To CHAIR - POCI01-0145-FEDER-028247 and UPWIND- POCI -FEDER-FCT -31447. Financial support from the Portuguese Foundation for Science and Technology (FCT) in the framework of the Strategic Financing. UIDIFIS/04650/2013 is also acknowledged