I have done wrapped designs before and I have even come up with a few on my own but the patterns for this lesson were let's just say minimal in the written instructions. I get it, this is the next level of certification so you should be able to look at a diagram or picture and have an idea of what to do, which I did for the first 2 temari. it was the third temari that was difficult.
As you can see the first 2 temari are wrapped with a single thread of pearl cotton. The colors alternate on opposites so this requires either one long thread to hang off the mari while winding or to have multiple starts and stops. Each thread color is wrapped around the mari once and then the other color is wrapped so there was no weaving but keeping the order and direction being wrapped is important so the over/under's are correct.
The third temari was the most difficult. This is made with 6 strand floss NOT pearl cotton. The floss has to be separated and de-twisted from the hank so all the threads lay parallel to each other. Luckily I saw this ball when I went to the John C. Campbell Folk School in 2018 (sorry no post) and I was given pointers on how to de-tangle the skein and also how to wind the 6 threads onto the mari at the same time. I had the first black section wound and the dark blue and had started the second black when I realized I was winding it wrong; I had to unwind the black keeping all 6 threads from getting tangled and then I unwound the blue. I was able to keep all the threads attached to the mari so I could then rewind the blue and then resume the black. I went slow and finally was able to finish it with no other winding mistakes.