This channel teaches vocabulary and grammar explanation of every chapter from the first book of Minna no Nihongo『みんなの日本語初級I』. Although the author of this channel, Rose, is not a native speaker… she lives and works in Japan and has pick up the language from self studying and from daily life.
All 25 lessons are divided in 2 parts: first vocabulary, then grammar explanation.
You don’t really need the book to follow these videos. I believe they are self-contained. As with most things, she gets better at presenting and explaining as the lessons progresses. Please give it a try. It’s a very good resource.
For those who like the series, she will continue with Book 2 next month.