Too many clicks!
The new UI requires far too many clicks to get attendance submitted.
It takes me three clicks just to get to each attendance screen: one to get to the site, two to enter it, and three to choose my correct profile out of two choices. Then I have to manually pull down each absent student menubar, then I have to click submit, then I have to click certify, then I have to click OK, which I now have to navigate to instead of defaulting to RETURN.
The previous UI was much more user friendly. It required far less manual data entry--the new layout takes more time and energy. Please streamline.

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Smith, Flint commented
Also, the "Submit" button is at the FAR right of the screen when the period selection area is at the far left. It makes no sense.
Please consider the 10s of thousands of teachers who are required to do a clickity-click-click dance to your tune 5 or six times a day. We like our dance simple and with few steps. Tap Dancing is fun to watch but not to try to emulate.