Ushiro waza

Shomen Uchi Ikkajo Osae-1
Ushirowaza Ryote Mochi Ikakjo Osae-1
Ushirowaza Ryote Mochi Sankajo-2 (up to Sankajo)

Note:
Class of 5. I thought it goes with Ikkajo all way through the class but Sensei mixed with Sankajo as well.

Ushirowaza...not only the movements look complicated, there are many factors you have to keep pay attention to...

I think the most important point of all is to keep you balance (when this isnt important...!)
Believe it or not, Suwariwaza Ryote Mochi Kokyuho is a great practice you can apply to many many techniques the same concept of staying in balance and keep moving at the same time.

Taking a step back as you keep everything else in Ushiro movement is a tough move but if you can keep your back line...it gets much easier and makes much more sense.