How to make an open origami cube III

(page 4)

5th picture of origami open cube III

05.

Apply the diagonal "mountain-fold" of the step #4 and then unfold.

Prepare to apply a "valley-fold" and then unfold.

6th picture of origami open cube III

06.

Apply the "valley-fold" of the step #5 and then unfold.

Prepare to apply a "valley-fold" .