IMPORTANT TO DO: Watch this YouTube video I made: Modular Arithmetic User’s Manual (9:23). This is part of the course lecture material, in flipped form.

To Do: Here’s a follow-up worksheet to do and hand in on canvas’s daily dropbox.

To Do (time permitting): Think about how to finish off the proof from Friday’s class; I’ll finish it up on Monday.

To Know: There’s a proof quiz due Monday on canvas.