There are so many options when it comes to offline advertising. You have your regular distribution of business cards, flyers, magnets, and free promotional items to give away. How about something a little bit out of the ordinary? How about something to let others show you mean business? No pun intended.
Ever thought of free stuff as effective website advertisement ideas? Things like pens and t-shirts are very popular and often are great for using in getting the word out about your site. Everybody loves free stuff and you should be no different, make full use of this and watch the results yourself.
Try to get your name/email address on the school’s website. It would be helpful to get a link from the school’s website to your webpage or email. This will probably only happen after you have built up a reputation with parents and teachers at the school. Be patient but diligent.