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Onto Functions
Posted:
Nov 29, 2012 7:59 AM
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I seem to recall a lengthy conversation on how to deal with onto functions in Alg2/Trig. I am comfortable with the concept that for a function to be onto, the range must equal the image set. For example f(x) = x^2 is onto the non-negative reals because the range is the non-negative reals. My question is would y = x^2 be onto the positive reals? In this case the range contains everything in the image set but also contains more (zero is in the range but not the image set). Any insight would be appreciated.
Thanks,
Dave Ryley
Beacon HS
From: owner-nyshsmath@mathforum.org [mailto:owner-nyshsmath@mathforum.org] On Behalf Of Peggy Niforos
Sent: Wednesday, November 28, 2012 10:00 PM
To: nyshsmath@mathforum.org
Subject: RE: Non-Right Triangle Trig in NY CCSS Geometry
If you are talking about the exam in June 2014 for Algebra 1 and Geometry - the exam is being built by SED the same basic way as the past exams - just following the CCLS. PARCC exams will not exist by then. What will happen after June 2014 is up for a decision.
I can also suggest that you study the PARCC framework (which is no longer a "draft") more closely than Appendix A. While nothing has been decided officially - SED will most likely pick something more closely aligned to this than the original Appendix A.
________________________________
Date: Wed, 28 Nov 2012 16:17:32 -0500
From: wickes@optonline.net<mailto:wickes@optonline.net>
Subject: RE: Non-Right Triangle Trig in NY CCSS Geometry
To: nyshsmath@mathforum.org<mailto:nyshsmath@mathforum.org>
Maybe I am missing something, but has it been confirmed that parcc will definitely replace the regents in 2014
From: owner-nyshsmath@mathforum.org<mailto:owner-nyshsmath@mathforum.org> [mailto:owner-nyshsmath@mathforum.org] On Behalf Of C Lorandini
Sent: Friday, November 16, 2012 2:26 PM
To: nyshsmath@mathforum.org<mailto:nyshsmath@mathforum.org>
Subject: Re: Non-Right Triangle Trig in NY CCSS Geometry
It will be on memberclicks for all members to see
Sent from my iPhone
On Nov 16, 2012, at 2:01 PM, Chris Crater <cc_8983@yahoo.com<mailto:cc_8983@yahoo.com>> wrote:
Can someone share minutes from the state level meetings during the AMTNYS conference for those that couldn't attend?
From: Caryl Lorandini <mathcaryl@aol.com<mailto:mathcaryl@aol.com>>
To: nyshsmath@mathforum.org<mailto:nyshsmath@mathforum.org>
Sent: Friday, November 16, 2012 9:47 AM
Subject: Re: Non-Right Triangle Trig in NY CCSS Geometry
The messsage below is another good reason to join AMTNYS:)
This was last week's news to those of us who were there at the conference in Rye.
Caryl Lorandini
AMTNYS, Treasurer
LIMACON, Secretary
NCMTA, Past-President
NCAMS, Executive Board
-----Original Message-----
From: Katherine Cook <kcook@fmschools.org<mailto:kcook@fmschools.org>>
To: 'nyshsmath@mathforum.org<mailto:nyshsmath@mathforum.org>' <nyshsmath@mathforum.org<mailto:nyshsmath@mathforum.org>>
Sent: Fri, Nov 16, 2012 9:13 am
Subject: RE: Non-Right Triangle Trig in NY CCSS Geometry
John Svendson told us at the AMTNYS conference to go by the PARCC document (NOT Appendix A) and he did mention that some (+) topics had been taken out.
From: owner-nyshsmath@mathforum.org<mailto:owner-nyshsmath@mathforum.org> [mailto:owner-nyshsmath@mathforum.org?] On Behalf Of George Reuter
Sent: Friday, November 16, 2012 8:43 AM
To: nyshsmath@mathforum.org<mailto:nyshsmath@mathforum.org>
Subject: Non-Right Triangle Trig in NY CCSS Geometry
Hi Listservers,
I'm trying to figure out if the (+) topics, specifically trigonometry of non-right triangles, is going to be assessed on the NYS 2014 Regents exam. It is specifically mentioned in Appendix A, and we have been told that the (+) topics were "in", but the PARCC Frameworks document that is the new thing doesn't mention them.
Any insight would be greatly appreciated.
George Reuter
Mathematics Teacher, Canandaigua Academy
President, NYS Mathematics League
President, Monroe County Math League
Coach, Upstate NY Math Team
Problem Author, Math Olympiads for Elementary Schools & MathMeets.com<http://mathmeets.com/>
Adjunct Lecturer, SUNY Geneseo
Father of 6
Husband of 1
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