Class Info

  • Date: Tuesday, 10/8/20, 4:05 – 5:45pm
  • Meeting Info: The class will meet live on zoom today (password is the same last time – send me an email if you need a reminder).

To-Do Before Class

  • N/A


  1. Chapter 4: Direct Proof (part 2)


  • Identify and emulate basic proof structure and elements, including hypotheses, definitions, theorems, and conclusions.
  • Work with common mathematical definitions, including even, odd, divides, and more.


Meeting recording will be posted here.

Written notes from lecture:

Group activity will take place during second half of class.

To-Do After Class

Complete the homework assignment from Chapter 4 (due next Tuesday). The OpenLab assignment “Lockhart’s Lament” will be due on Thursday 10/20.

Homework due Tuesday 10/13: Chapter 4: 1, 6, 7, 15, 16
(Upload link)

OpenLab Assignment due Tuesday 10/20: Lockhart’s Lament

Submitting written work (instructions)

  • Take a picture of each written page of your assignment, and combine the pictures into a single pdf document.
  • Give the document a name that will help me identify it, for example: “JRodriguez-Class1Homework.pdf”
  • Use this upload link to upload your pdf (this link connects to a Dropbox folder, but you do NOT need to have a Dropbox account to use it).
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