I wonder if that education should also explicitly include how likes, ads and attention are correlated. Making them understand their place in the world is good but SM is a different take on that age-old problem.
Have the kids make a post to see who can get the most likes over a week, the teacher does a lame one as well ("read books this summer!"). Nobody likes the teachers post, until the last day when teacher buys 1000 likes for the post, blowing everyone away for $5.
Now the kids know its all made up and the points don't matter.