Ophthalmology is a compulsory course of clinical medicine for medical college students.The undiversified traditional teaching method results in unsatisfactory teaching effects.
But in a country where voting is compulsory, the 20 million or so votes that Marina Silva secured in the first round are being actively courted by the two remaining candidates.
The reasoning behind this is that the minimum required payments are compulsory and failure to pay them would cause adverse effects on your credit status; something you just can't live with.
This is quite wrong, because parents who stop reading to their children once they start compulsory education at the age of five are jeopardizing their chances of success.