I've used Scratch with fourth graders on a fairly basic project. I don't know what exactly you're looking for in terms of a presentation, but I'd be happy to share my thoughts on how things went and what the students learned by working with Scratch.…
I will have handouts at the display. I also email electronic versions, but I don't know if they are posted. Email me at kavanaughm@somonauk.net if you want me to email digital copies.