Have you seen Code.org's video on routing? Might be worth linking to, as it is very simple to understand: https://www.youtube.com/watch?v=AYdF7b3nMto https://w

Have you seen Code.org's video on routing? Might be worth linking to, as it is very simple to understand: https://www.youtube.com/watch?v=AYdF7b3nMto https://www.youtube.com/watch?v=AYdF7b3nMto