Drexel dragonThe Math ForumDonate to the Math Forum



Search All of the Math Forum:

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


Math Forum » Discussions » Professional Associations » nyshsmath

Topic: Geo #34
Replies: 0  

Advanced Search

Back to Topic List Back to Topic List  
Evan Romer

Posts: 27
From: Conklin Ny
Registered: 2/14/10
Geo #34
Posted: Jun 19, 2013 6:18 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

We called on #34 with several questions.

(1) In the rubric, the third 1-point entry says that 3/2 with no work does not get the point. What is "appropriate work"?

Answer: (4-1)/(4-2) = 3/2, or change in y/change in x = 3/2, or a sketch on a grid. But no, just 3/2 with no work does not earn the point.

(2) In that case, for full credit, can they just write 3/2 and then have -2/3 as a final answer, or do they need to show work for how they found 3/2?

Answer: It is full credit if student just writes 3/2 followed by -2/3.

(3) Isn't that inconsistent?

Answer: Yes, but it's a two-point question, you can't make fine distinctions.

(4) If, despite our best efforts to make sure students know the scrap graph paper will not be graded, a student writes "see work on graph paper," can we look at the graph paper for work? No, the graph paper may not be scored.

(5) We feel that the question should have had a grid, with "use of the grid is optional."

Answer: they were probably trying to force an algebraic response.

Our reply: We feel this was an awkward way to do that, since it's not clear to the student what work is needed. Maybe a better way to do that is to ask for the slope from (1, 2) to (5, 75).



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

[Privacy Policy] [Terms of Use]

© Drexel University 1994-2014. All Rights Reserved.
The Math Forum is a research and educational enterprise of the Drexel University School of Education.