1. (difficult) The only difficult part I had was in following the proof of the division Algorithm. I first struggled when the book introduced the value t=r-a, but after some careful looking and reading I understood that. The one spot that I still do not understand is the introduction of, characteristics of , and manipulation of the variables r' and q'.
2. (reflective) I thought it was nice to finally come back and expand on the understandings that we have gained about the integers being able to be described as 2x, or 2x+1, or further as one of the following: 3x, 3x+1, 3x+2. It only makes sense that we come to understand all numbers as being written as aq+r where r<q.
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