Is it necesarry to intergrate social media in the classroom?

I think it is necessary to intergrade social media in the classroom. Learners are very familiar with social media and this could even make learning fun. Children of today spent hours on their phones and in front of the computer screen. Teachers can use blogs, facebook and twitter to communicate with learners instead of the old fashioned way of giving tasks or assignment to them. Many learners are shy to ask for help and can use social media to ask for help, but being on facebook or twitter with their teacher does not mean the learners should stalk or harass their teacher. It will be only for helping learners and teachers should be careful of what they put on social media.