This task is a little different than most, but I really think it has some good exploration built in and it lends itself to more of an open task. The standards that I think best fit this task are Math Practice 1, 3, and 4. If you think there is a good fit with a content standard, please comment below. There is definitely some partitioning of the whole which could be a good application of 3.GA.2.
Act 1
What did you notice? What do you wonder?
Focus Question: How will the bread be cut?
Act 2
I made 7 cuts. Number of Pretzels