Singapore Parents

Hi,
like to get some opinions. I come across a youtube channel, explaining math questions in details. Anyone can comment if this is a good tool to replace tuition or assessment books?

Link: https://www.youtube.com/watch?v=CbAba3U ... ZbC7m99Hz2

Good if you can control your kids watch time..otherwise youtube can be a very bad influence too..especially when they switch and watch video gaming videos.

With youtube you would still need to watch over the child as they can switch between videos but i find youtube as a tuition option is not so good.