Hi all,Thanks for your comments. Wan,Yes, it involves maths concept and the problem is the child does not know multiplication yet. We incorporate time in daily life too, but we always say it in Mandarin. Hmm… maybe I can start saying it in English instead.Concern2,I intend to teach ‘three twenty-five’, ‘two-fifty’.Jedamum,Good idea. Nvr thot of that.