Teaching Metric Relations in a Triangle through WhatsApp, A Case Study of Students in Grade 12, Section General Sciences, in a Public School in Beirut

This research aims at examining the impact of teaching the lesson ?metric relations in a triangle? in mathematics, through WhatsApp, to 23 students in grade 12, section general sciences, in a public school in Beirut. It also aims at determining students? opinions about the possibility of teaching other math lessons via WhatsApp to students in other classes and levels. Finally, it aims at estimating the percent of students who believe that the role of the teacher is important in delivering the information to the students through the WhatsApp and those who are willing to study a second lesson in mathematics through the same platform. The sample of the study was formed by 23 students in grade 12, section general sciences, through the purposive sampling technique. This research, through its quantitative approach, have explored the possible relations between Whatsapp and teaching a mathematical lesson. For statistics, the researchers have used the frequencies, the percent and the bar diagrams to represent the data of the study. Results of the study have revealed that the lesson ?metric relations in a triangle? can be taught via the WhatsApp and through interaction with the teacher. Most of the participants were able to solve the assigned exercises after completing discussing the lesson through the WhatsApp and many of them have believed that it is possible teaching other math lessons via the same platform to students in other classes and levels. 95.6% of the participants have believed that the role of the teacher is important in delivering the information to the student through the WhatsApp, while 85.9% were willing to study a second lesson in mathematics via the same platform. The researchers recommend that math teachers use the deliberate practice through the WhatsApp and support their students with extra exercises to perform better in exams. They also recommend other researchers, through experiments, to examine the impact of teaching deeper mathematical lessons in different classes and levels through WhatsApp and other social media platforms and networking sites.