You should look in the Journal of Chemical Education. A year or two ago they had an issue that had some white phosphorous demos in it, and as I recall, it showcased one of them on the cover.
That being said, I would be very careful when dealing with this material. This is not something to be taken lightly and is not something to be done in a high school. Even if your teacher does it and is experienced, it can be dangerous. IIRC, the lethal dose of white P is 0.05g. When it burns, it forms P2O5, which is also toxic, and if it gets on your skin, the proper treatment is to pack it with mud, then cut off the skin of the affected area. There may be better ways of dealing with it now, especially in certain medical centers, but in the field or in a classroom, this could lead to some problems. I'd personally leave this demo up to some college profs.
Take this with warning, too: I think it's perfectly reasonable for a science teacher to demo pyrotechnics, thermite, and even some explosives to a class, so for me to say that I think white P demos are dangerous is saying a lot.