it is just someone do exercise with your child
it is just someone do exercise with your child method, so if parent is not lazy and put in effort to do a simple exercise with your child twice a week than exactly same as what LingoAce is doing. also, some children tend to keep silent and refuse to answer the teacher or telling their choice of answer while doing exercise with other children it can be time eating and waste a lot , i saw the playback of my child, some child just reluctant to answer and the teacher keep asking till they reply. and once time up, she just stop like that, not so effective