"I, Shakespeare" is a collection of four brief-ish monologues covering four different plays (Twelfth Night, Macbeth, The Tempest and Midsummer Night's Dream) aimed at children of different ages. Each takes a character from the play and tells the story in straightforward language of the relevant plays from their perspective. At worst, they are a clear telling of the story for kids, and at best some of them genuinely a new perspective to the plays and at very least would make for interesting discussion topics. The limiting factor of this edition (which like most play texts doesn't come cheap due to the relatively low circulation numbers) is that it covers a range of age groups.
I, Malvolio and I, Banquo are aimed at around 11 year olds. The first of these is by far the best providing a thought provoking insight into the bullying of Malvolio that kids will relate to (adults too). There's good old slapstick humour to ease the story along as well. In I Banquo, the least successful for me, the approach is more of a straightforward telling of the story and in my experience kids usually pretty much "get" Macbeth straight off. Here Crouch lays on the gore factor to entertain blood-thirsty young kids. It's fine as it goes, but perhaps the least innovative. Both would be adaptable to class reading.
I, Caliban and I, Peasblossom are targeted at younger children - around 8 years or so. Both are funny and interesting. I, Caliban is the most straightforward of the two plays but none the weaker for that. There's humour and a clear story that certainly helps. I, Peasblossom is perhaps the most innovative in structure and perhaps requires more performance that straight reading to get the most out of it, but it's a charming piece.