I will each according to students nature or behave.According to me we all have to learn the holy quran with tajweed.i think if someone want to learn the quran with tajweed i will help him and i m pretty sure if someone willing to learn the quran with heart i will teach him and in 3 months he will be able to recite the holy quran without mistake and with tajweed like most of Qurahh of Quran.This can only be done if u want to learn the quran by heart.