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 Post subject: Which Cube cannot be made from the given net?Posted: Sat May 16, 2009 3:10 pm

Joined: Mon Oct 23, 2006 12:17 pm
Posts: 43
Location: birmingham
I am trying to find a way of DD2 to understand how to figure these out very quickly.
She is doing really well in NVR but has hit a stumbling block with these ones and its a guessing game with them.

I have been pretty useful so far but even I am struggling to find a quick way to look at these cubes and see which one out of the 5 multiple choice would not be made from the given.

We are using BOND 10 MINUTE TESTS NVR 9-10 YR OLDS.

any help would be gratefully received! I just wondered what YOU use lol

thanks!

Liesa
x

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 Post subject: Posted: Sat May 16, 2009 4:25 pm

Joined: Mon Feb 12, 2007 1:21 pm
Posts: 14000
http://www.mathematische-basteleien.de/hexominos.htm

Might help - cut some of the shapes out and get her to fold them up - this will help visualisation.

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 Post subject: Posted: Sat May 16, 2009 5:04 pm

Joined: Fri Nov 17, 2006 8:54 pm
Posts: 1776
Location: caversham
On the Bond website there is a free download of cube nets.

We spent a happy afternoon playing with them, not relevant to our local NVR but useful all the same.

steve

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 Post subject: Posted: Sat May 16, 2009 9:00 pm
Don't worry. Most children struggle with these.

I am sure you have already told her this but, just in case you haven't, any squares which have a square between them cannot then be next to each other--they will always be opposite each other when the cube is made. This, of course, won't work for all of them but it does work for some.

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 Post subject: Posted: Wed May 20, 2009 9:09 pm

Joined: Tue Sep 16, 2008 7:30 pm
Posts: 139
Steve,

Do you have Bond's 'How to do non verbal reasoning' book? Nets of cubes is covered in this book and may give you few basic concepts to grasp.

Gilly

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 Post subject: Posted: Thu May 21, 2009 7:28 am

Joined: Fri Nov 17, 2006 8:54 pm
Posts: 1776
Location: caversham
Gilly wrote:
Steve,

Do you have Bond's 'How to do non verbal reasoning' book? Nets of cubes is covered in this book and may give you few basic concepts to grasp.

Gilly

Hi Gilly,

Yes I do, thanks. It is a very good book and gives the link to the website where you can download and cut out all the net types.

steve

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 Post subject: Posted: Thu May 21, 2009 8:29 am

Joined: Fri Oct 12, 2007 12:42 pm
Posts: 3826
When we thought we were moving DD began doing NVR, she liked everything except the cubes. Cutting out the nets and colouring the edges that touched helped her. She did about 10 and then found them easy. However when faced with nets of cubes in an old SATs paper she had totally forgotten how to do them. So I would recommend reinforcement when your DD "gets it".

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