It is important to take into consideration the key role that synchronous and asynchronous foster students thinking in their learning process. Today’s learning requires many different ways in which students can improve their knowledge and in which they can be engage with their learning by using new methods that technology provides. In this case, Asynchronous and Synchronous e-learning are technological techniques that are used as a new way of teaching in which students can search, express, discuss, and find benefits and results with accuracy. According to Stefan Hrastinski, 2008, Asynchronous e-learning implied the uses of online courses, e- mails and discussions boards, so students can experience a flexibility in their learning process because teachers and students are creating an environment where they can upload and download documents between them. That is why, there is an enormous collaboration between teachers and students because it represents a real time work. Synchronous e-learning includes videoconferencing, chats and audios. According to Stefan Hrastinski, 2008, teachers can implement this resources in order to make students engage and participants in their learning instead of being isolated. Students are capable to keep a communication based on different opinions in which they can improve their critical thinking. That is why, this technological resources can facilitate the process of learning in order to discover new ways of increase student’s critical thinking.