This should perhaps be in preschool ed, but following on from the "patronising school shite" thread: 
yesterday my DD (3.6) came out of her daycare session with some 'writing' - a staff member had written a sentence in big yellow letters and DD had written over the top in biro.
I was really proud as it was startlingly neat and accurate, and a massive improvement as she did similar before Xmas where she mostly just circled individual letters.
BUT obviously I have no idea if she formed the letters correctly (she's right handed btw) - so my question is, now that she's got better pen control and may be doing more of these activities - is it time to teach proper letter formation before she gets into bad habits?
She can do her initial J properly as well as s, w and o but I've never pushed it.
How do we go about it? I'm sure she will enjoy it as she likes doing 'homework' like mummy and I'll make it fun. She loves mazes and drawing over dotted lines (I've got workbooks packed away and I guess she's now ready for them) - but I've also heard it's important not to solely rely on dotted letters as they need to do it without.
I am so confused... What do I do?