At this point Don encouraged me to sort of take over a little, and facilitate the second groups sharing. I had asked the second group (the ones that wrote in green felt) to share the second part (1/4 of $17). Because of time factors, and considering how long the kids take to present, it was better for me to do it.
I asked the same child (call him J) who drew the above diagram, to draw 4 circles to represent the 4 people. Then we stopped and talked (altogether) about how we could try the same thing the pink group did, and split the $17 into a number that is more easily divisible into 4 groups. So they came up with 4x4=16, and I asked 'J' to write the number 4 in each box. Next we talked about how we could split the leftover $1. We had established with the pink group that half of $1 is 50c, so now we needed to work out quarter of $1. The students offered different answers - 10c, 15c etc. We checked these using skip counting and repeated addition, but they didn't add up to 100 cents. Finally we got 25 cents. So each person gets 4.25.