More clock flowers

We used the Scratch Clock Flower Project and noticed lots of things - have a look at our comments.
Then we together looked at which size jump "fitted", so that the jumps only went round once to create nice neat petals.

We scanned them and coloured them in quickly on Paint:

Meanwhile, Rose, Marie and Gabrielle volunteered to try a similar thing with Cuisenaire rods. Their line of rods had to be 60 long. Only numbers that "fitted" exactly into sixty could be added.

They did a great job. The line at the top is the twelves, made of ten+two because we don't have any twelve rods. Can you see any other big factors of sixty that are missing?