DD is just over a year old. She'll drink from an open cup (although I hold on tight as well!) or from a free flow spouted beaker (like this), but she can't get the hang of valves at all. She never really got the hang of drinking milk from bottles, either, but as I'm still BF we didn't worry too much.
Anyhow, is there a problem with carrying on giving her the spouted beakers? I'm just worrying that it's going to wreck her teeth (that's why "they" recommend moving away from teats after a year, isn't it?).