Sure! When I started learning about agroforestry I looked for english books on the subject but didn't find good ones, Gaia's Garden by Toby Hemenway have really good info you could use. But in portuguese I've so a few good PDFs here, I guess that's because of the work of Ernst Gotsch here in Brazil, here's a good video that summarize his work: https://www.youtube.com/watch?v=gSPNRu4ZPvE

An agroforestry look like this: https://sitiocurupira.files.wordpress.com/2008/11/agroflores...

Take very special attention to the ground on the video I linked above. So the main thing is the soil, the work will basically be always improving it by pilling up organic matter, from regular pruning and your organic waste too, the school must have good source of organic waste, also the city gardens/grass pruning are a good place to look for organic matter you could use on this project.

Also, the more you plant together and at the same time the better. On the video you can see Bananas and Eucalyptus side by side, people think that Eucalyptus doesnt let anything grows near it, etc... but then I saw a lot of things fruiting just a few centimeters from Eucalyptus, because of the regular pruning.

I'll send you an email so we can continue to talk about this.