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Integrated Algebra  June 2008  #34
Posted:
Jun 17, 2008 5:14 PM


John,
I'd like to draw your attention to part of the rubric in question #34.
If you are not dealing with these sorts of questions, I would appreciate if you would forward this to the appropriate person.
I, and other teachers, have seen two variations on responses where work that we would consider either fully or mostly appropriate for ourselves, leading to an entirely correct answer, but are overpenalized by the rubric.
In the first case, the child writes 10 + 2d > 75, and then answers that 33 is the minimum number of whole days.
The rubric calls for greater than or equal to, but equality is impossible as the lefthand side must be even, the righthand side is odd.
The rubric awards this response only 1 out of 3 points. It would seem that full credit should be awarded.
In the second case, the child writes 10 + 2d = 75, solves for d (d= 65/2), and answers "33."
The child has written an equation instead of an inequality (a written communication error) but has understood that there is an inequality condition, and treated it appropriately as such.
The rubric awards 1 point for this response. It would seem that 2 points would be more appropriate.
Thank you for your attention,
Jonathan Halabi HS of American Studies the Bronx ******************************************************************* * To unsubscribe from this mailing list, email the message * "unsubscribe nysmathab" to majordomo@mathforum.org * * Read prior posts and download attachments from the web archives at * http://mathforum.org/kb/forum.jspa?forumID=338 *******************************************************************



