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 » Professional Associations » nyshsmath

Notice: We are no longer accepting new posts, but the forums will continue to be readable.

Topic: CC Alg 1 Rounding Rules
Replies: 7   Last Post: Aug 26, 2013 4:35 PM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
Meg Clemens

Posts: 345
Registered: 12/3/04
RE: CC Alg 1 Rounding Rules
Posted: Aug 22, 2013 9:29 AM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply
att1.html (4.6 K)

This Common Core (and PARCC frameworks) standard seems to be the appropriate one. A Story of Functions says that this standard is addressed in both Module 1 and Module 5. However, Module 1 did not include any direct instruction on it.

N-Q.3 Choose a level of accuracy appropriate to limitations on measurement when reporting quantities.

Rounding is tricky. There are different rules for different operations. In Module 2 standard deviation is routinely rounded to the hundredths place without consistent direction in the problem (sometimes rounding instruction were given, sometimes not) or explanation. There was an A2T problem last year(?) that students got wrong b/c they rounded the standard deviation to the units place and appeals were denied on the basis that they should have known better.

We definitely need more clarification on this topic.

Meg Clemens

Canton Central School

NBCT 2002 - 2022

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 1994-2018. All Rights Reserved.