2178-5201 2178-5201 S2178-52012017000300319 10.4025/actascieduc.v39i3.27902 Brazil Brazil 00 09 2017 00 09 2017 39 3 319 328

51 4 4 355-65 111 4 4 1036-060 12 2 2 361-76 13 4 4 277-87 5 6 6 236-43 79 3 3 221-44 38 1 1 23-31 41 2 2 75-86 38 1 1 1-4