One of the main objectives in education is to increase the motivation of the students to achieve meaningful learning. The use of technologies in classrooms which students are familiarized with such as the smartphone or the tablet, is a way to achieve this goal. On the other hand, it has been proven that the inclusion of scenarios supported by games and competition enhance the active participation of students. Therefore, in this work we present the results of a study based on of the application Kahoot with students of secondary education, in the subjects of mathematics, biology & geology and physics & chemistry, during the academic year 2017/2018. This tool allows students to answer to on-line questionnaires created by the teacher, through mobile devices, and check their results in a few seconds as well as those of their classmates. The results obtained on the assessment of the tool by students, in terms of the benefits in the learning process, have been very positive and help us to examine the potential of the use of on-line questionnaires in the classrooms.

Cooperative learning is an active methodology where students, in small groups, carry out activities in a coordinated manner to achieve a common learning objective. Over the years it has been proven that it is a methodology that increases students' performance, increasing their self-esteem and improving their social skills. One of the key elements to achieve the best results is the implementation of the methodology, which includes the formation of the teams. Through a systematic review, following the PRISMA statement, the latest advances made in this regard are analyzed. The importance of team formation is shown, taking into account the students' previous academic performance, gender, race, ethnicity, interest, and social and attitudinal skills, and the instruments that have been evaluated as support for the teacher are presented.

The characteristics of our society, highly technical, bring with them the need for citizens to be able to respond to different situations of their day to day using mathematical knowledge, from an early age. The forced change to an online education given during 2020 and caused by the SARS-Cov2 virus has reflected this need, which can be compensated with an adequate use of Information and Communication Technologies (ICT) in the processes teaching-learning by teachers and students. The following article aims to offer a proposal to work in Infantil Education with mathematical content based on the use of ICT and based on the reading of the story by Jerome Ruillier, Por cuatro esquinitas de nada, from an online work environment.