You can earn points towards your participation grade by asking questions, 
pointing out errors, making insightful comments in class, e-mailing 
suggestions (for example links to helpful websites including short 
description), actively participate in office hours, etc..
<P>
To earn your participation grade, e-mail a short description of the 
contribution to  <b></b>
with subject:  <b>22M:33 participation grade</b>.  E-mails should be sent 
about 1 – 2 times per month or per semester.
<P>
Your e-mails should be cumulative so that at the end of the semester we 
have one e-mail containing all your class contributions. In other words 
reply to the last one that you sent.   Including some details in your 
email (such as what question, comment, error did you point out) would be 
helpful, especially if you would like a letter of recommendation. However, 
the e-mails can be informal and should be quickly written. <b>Do not spend 
much time on them. </b>
<P>
The main purpose for these e-mails is in case you need a letter of 
recommendation from me.  I can use these e-mails to write a personalized 
letter including specifics that will boost the usefulness of the letter.  
The alternative is a generic letter that won’t count for much.