They're continuing their work on the outside wall forms today, putting in all the Snap Ties and securing them with metal Jahn "A" brackets and 2x4 Walers on the exterior of the form. This website explains the process they're using to put up the wall forms.
Here are some closeup pictures of the Snap Ties on one side of the plywood and the Jahn "A" brackets on the other side.
Once they're done with this step, they'll finish installing the rebar for the walls. The last step will be to attach the interior side of the forms to the Snap Ties.