Kid, scrambling for some paper and a pencil: "Mama! Hold on a second, I have a math thought!"
Silly me, I just thought she was trying to avoid having her hair brushed... It took her three tries, but on the third try she had it just right.
Me: "Tell me about it..."
Kid: "This is a square, and if you draw two triangles you get a rhombus."
"Scrar" = square
"Robis" = rhombus
"T" = triangle
Me: "That's really cool! How did you come up with that?"
Turns out it was this funny little geometric-solid-ish toy I bought her for $6 at the local children's science museum. This is what she saw: