The Math Forum



Search All of the Math Forum:

Views expressed in these public forums are not endorsed by NCTM or The Math Forum.


Math Forum » Discussions » Courses » ap-calculus

Topic: [ap-calculus] grading practice exam
Replies: 1   Last Post: Apr 21, 2012 9:54 AM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
Kristin Visser

Posts: 44
Registered: 10/11/10
[ap-calculus] grading practice exam
Posted: Apr 20, 2012 12:35 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

My students just finished taking the AP practice exam and a few questions
have come up:

On FRQ #1 b a few students only used equation E(t) and didn't account for
the rate at which sewage was leaving. The still showed their work to find
critical numbers and evaluate the max value. Would this be a case where the
grader would "read with" their mistake and they could still get partial
credit or would only using E(t) be considered simplifying the problem and
thus not earn any points?

On FRQ #2 students defined intersection points with letters in part a. Can
they then refer to them throughout or do they need to restate it for each
additional part of the problem that they use them on?

Thanks!

--
Mrs. Kristin Visser
Chicago Christian High School
Physics, Honors Physics, and AP Calculus Teacher
Cross Country and Track Coach

====
Course related websites:
http://apcentral.collegeboard.com/calculusab
http://apcentral.collegeboard.com/calculusbc
---
To search the list archives for previous posts go to
http://lyris.collegeboard.com/read/?forum=ap-calculus
To unsubscribe click here:
http://lyris.collegeboard.com/read/my_forums/
To change your subscription address or other settings click here:
http://lyris.collegeboard.com/read/my_account/edit



Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© The Math Forum at NCTM 1994-2017. All Rights Reserved.