One key ingredient - maybe THE key ingredient - for students to be able to solve maths word problems is being able to VISUALISE what they read. The attached document gives you a step by step approach to teaching students how to visualise word problems as a key step to solving the problem. Thanks to Jude Ocean from RMIT in Melbourne Victoria for providing the core material for this document.

From the NAPLAN Resources website:
"A large number of practice questions are available from this Northern Territory website. Answers are provided as well as difficulty levels for each question. Great practice for NAPLAN 2008, years 3 , 5 , 7 and 9, although they have been developed for a previous testing system."
http://www.deet.nt.gov.au/education/teaching_and_learning/assessment_sta...

From the website: "The purpose of this Blog is to keep schools and parents informed about NAPLAN 2008. This Blog is run by Kilbaha Multimedia Publishing." New material will be added daily or so, so keep checking back.
http://naplan.blogspot.com/

Here is the link to the NAPLAN website:
http://www.vcaa.vic.edu.au/prep10/naplan/index.html

And here is the link to the sample Numeracy questions:
http://www.naplan.edu.au/test_samples/numeracy/numeracy.html

And the link to AIM sample questions from Victoria (which presumably are good practice for the NNA):
http://www.vcaa.vic.edu.au/prep10/aim/testing/index.html