Here are some comments on the Assignment 4.

Problem 2.4.8
Was worth five points.
The average score was: 4.5
*Comments:
-Points were deducted for not using the limit laws or
other justification to evaluate the limit.

Problem 2.4.11
Was worth ten points.
The average score was: 8.5
*Comments:
-Points were deducted for not verifying that the constructed
functions worked. i.e. that they satisfied the properties
stated in the problem.
-Points were deducted for not using the limit laws or
other justification to evaluate limits.

Problem 2.5.6
Was worth fifteen points.
The average score was: 8.98
*Comments:
-Most students used different approaches on this problem.
-Trying to develop consistent and fair grading criteria
 was especially difficult.
-Many students had difficulties with this problem. The           errors made were pretty diverse so there isn't one common error or errors for me to report on.

Problem 2.5.8
Was worth five points.
The average score was: 4.38
*Comments:
-Points were deducted for not using the limit laws or
other justification to evaluate the limit.

The average score for Assignment 4 was: 26.34 / 35.