Toilet training child in full time daycare

My DS is 2 years 10 months and has shown interest in toilet training..however it feels like I'm going all over the place...   

One minute he is keen to go on the toilet, but not wear undies. Next minute, he is keen to wear undies but not use the toilet. I'm confused at what to do, especially since he is in daycare full time so spending quality time with him on this isn't possible. Any suggestions?   Should I encourage him to use the toilet FIRST and not use undies, and get that side of things rolling? I obviously want to keep the momentum going, but at the same time don't want to pressure him   

My other thought was spending the whole weekend at home to concentrate on it, and then hopefully at daycare it will be a little bit easier. I just don't want to go backwards, forwards, backwards again, then confuse the poor lad!

Any thoughts would be awesome!

I'm a bit of a believer in letting kids lead you as to when they are ready. It seems that boys take a little longer than girls. My 3yo has only just started TT. I resisted the pressure I felt when other mums had their children in undies and fully toilet trained younger than my son. It's hard to do that. As mums we get super anxious that our kids do everything at the right time and are not delayed.

What helped for me was waiting till the holidays and then spending several weeks allowing him to run around nude and get used to the sensation of needing to go wees and then telling me and then going. But it was after he told me he needed to go wees when he was in the bath and one other time when he was with his dad. So I was following his lead and it was easier. He still has accidents and he hasn't mastered the whole poo-thing yet but he's doing ok and daycare are very good at asking him, reminding him, and giving him stickers for his achievements and I praise him when I see the stickers on his hands. He likes wearing his spiderman undies the best because he loves superheroes.

Earlier this year he showed interest and then lost interest completely. I could have pushed it but I decided to let him show me when he is ready. There are two schools of thought on it - one is to do it that way, the other is just to knuckle down and tackle it. I think the latter is a lot of hard work!

I would encourage you on the weekend though to let him run around with no pants on and catch him when he's doing it or wanting to. It's good in summertime to do this. If you are struggling with his willingness to do it (rewards like lots of praise and stickers help) then I would leave it and try again a little later on.

Apologies for long rambling reply!