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 » Education » math-teach

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

Topic: Research on "Twice as big"
Replies: 19   Last Post: Feb 27, 2011 1:15 PM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
Isabella Wiggins

Posts: 6
Registered: 1/4/08
Re: Research on "Twice as big"
Posted: Jan 21, 2011 8:24 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

This is an interesting question. I pose that question to 7th grades when we are about to make the distinction between the sides being twice as long (making the area 4 times the size) vs the area begin twice as big. I think the natural inclination is to interpret "a square twice as big as this one" to mean the length of the sides should be twice as long. The task as originally stated is ambiguous. By the way, what does MAB mean? I don't recognize that acronym.

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.