Hi T!
so you know who moondog is then......
I took the front off my kitchen clock (apparently an IKEA one for £1 is ideal fodder for this)and drew three radii on the clock-face. I coloured in the resulting segments choosing yellow for 7.30 to 12, green for 12 till 6 and blue for 6 till 7.30. I removed the second hand. Ideally, you'd remove the minute hand too (not sure if mechanism would still work?) but I made do by telling DS2 that the big hand "was just a silly hand" and that we "look at the little hand". I then simply referred constantly to the different colours as morning, afternoon and evening (language that everyone around him was using anyway).
He was using it and relying on it very very quickly - people are always talking about morning afternoon and evening. He quickly started running into the kitchen to get verification as to whether things were happening at the "right" time.
I only use it downstairs because the whole thing kind of relies on them being upstairs (if not in bed!) by 7.30pm and not up until about 7.30am. Having said that, you could of course draw an extra circle around the outside of the clock coloured in very dark.....and explain it was nighttime....ideally with an extendable hand (you can see a commercial version of this product can't you?)
For some kids I think you'd hide the numbers at first. They have no logical meaning and are very confusing I think. You'd then draw them back on faintly once the child had a secure idea of what the clock was really for.
It's just logic really as per all the things moondog says. We mess around teaching children to recite "quarter past 3" and things like that which they don't need at all at age 4 but we don't teach them the fundementals of what a clock should be doing for us - it's a bit like trying to reduce a clock back down to a sundial-type thing.
Anway, it's been a rip-roaring success for us as DS2 can now tell the time to the nearest hour far better than DS1 can. Ds1 is now 7, excelling at school but still totally confused by all the different language that is used and over-used about time-telling.
I was so proud of myself I almost applied for a patent!
lots of love to you and M, lingle.