March 17, 2009
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There are certain kinds of family interactions that I sort of wonder: how often does this happen in other households?
My five-year old son has been playing tonight with some whiteboard markers and an eraser I brought home from university. A few minutes ago, he plonked his whiteboard down beside me and asked: “Mummy? Can you please draw me a Venn diagram?”
So I drew two circles with some overlapping space. Next question: “Do you like puppies?”
“I like puppies too! How do you draw a puppy?”
I drew a puppy – having been directed to a marginal space on the whiteboard, not close to the Venn diagram. My son then painstakingly drew a puppy inside the intersecting space. He proceeded to ask whether I liked other things. If I liked them, and he didn’t, they went into the non-intersecting bit of my circle alone. If he liked them, and I didn’t, they went into the non-intersecting bit of his circle.
We did have a conversation about Venn diagrams a few days ago. I just hadn’t been expecting that the concept would percolate, and come up again in quite this form…