the concept of measuring and units is a seed we plant. by using the language in describing things, by offering rulers and tape measures in dramatic play, by offering inch blocks for sorting and building.
then we move naturally to conversations of more and less, greater than and less than, etc.
or really it could be g is green or p is for purple or any other color.
we fingerpaint first with the goal being to keep some of the paper showing around the edge (an exercise in self control) to make a “frame.”
then we used these after all the foam got pulled out to scratch out the letters of the color word. clearly ony could use fingernails, dull pencils, etc. the great thing is “erasing” by rubbing the paint smooth again.