For Fri:

• To Know:  I have opened up the modular arithmetic badge and continued the open badges (due Friday).  The only badge missing is Induction, which is our next big topic.
• To Know:  Here’s a solution to the previous day’s daily post.
• To Do:  Find 3/7 mod 13.
• To Do: Here’s a list of pigeonhole problems that I am drawing from for the problems in class.  Try your hand at the ones we haven’t yet done in class.
• To hand in:  3/7 mod 13 and any guesses/ideas/solutions for the pigeonhole problems from that sheet that we haven’t done in class.