Written by Daniel Clifton, Editor– DailyTrib.com

As Marble Falls High School student Irene Ortiz tweaked the latte mix and then a frozen coffee drink, she wrote down the changes on a notebook sitting on the nearby counter.

Off to the side, business and entrepreneurship teacher Tucker Edwards watched. It’s part of the process, he said, of running a business: finding out what works, what doesn’t, and what to adjust. Those things hold true whether coming up with the perfect coffee drink or the right business plan…