Why not leave it up to the school? Surely, they are best placed to evaluate its educational value?
And you mean the Internet not Broadband. The school will determine its own connection methodology.
1999: Freeserve 48K Dial-Up => 2005: Wanadoo 1 Meg BB => 2007: Orange 2 Meg BB => 2008: Orange 8 Meg LLU BB => 2010: Orange 16 Meg LLU BB