Hi
I haven't done these myself but have seen them up on the wall in 1 of the classes at the school i work at.
The children drew a snake shaped line/wiggle then at various points along the line in date order drew pictures of major/ important life events such as birth, starting school, birth of a sibling, broke arm etc. Don't think they had to put the actual date just in the order they happened.
They were done on A3 paper as were being displayed however don't suppose the size matters
Hope that helps a bit x
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