Date  Link to a video to watch  Remarks/Comments  
Tue, Mar 24  a mathematical fable  
Tue, Mar 31  ellipces and Dandelin spheres  
Thu, Apr 2  two squares theorem  
Tue, Apr 7  the useless number  
Thu, Apr 9  fundamental theorem of algebra  odd polynomials you may benefit by eatching that before: it exploits the same idea in a simpler setting  
Tue, Apr 14  euler's formula  
Thu, Apr 16  visualizing quaternions  
Tue, Apr 21  quaternions and rotations  
Thu, Apr 23  Part 2 of the assessment exam  You answer as many questions as you can. You work on every problem on a separate page. You deliver back to me for grading all your work on the exam at once electronically via email 

Tue, Apr 28  Part 2 of the assessment exam due  
Thu, Apr 30  Part 3 of the assessment exam  You answer as many questions as you choose to (certainly not all of them!!) Typically, these are questions related to the 400 level classes which you took. You work on every problem on a separate page. You deliver back to me for grading all your work on the exam at once electronically via email. 

Tue, May 5  Part 3 of the assessment exam due  
Thu, May 7  Riemann hypothesis  this is the last video in this class to report about 