2177-6210 2177-6210 S2177-62102018000200185 10.4013/edu.2018.222.08 Brazil Brazil Brazil Brazil 00 06 2018 00 06 2018 22 2 185 193

21 70 70 63-79 21 70 70 80-99 21 70 70 15-39 23 80 80 386-400 20 1-9 195 1-7 26 92 92 1067-086