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This is a website that is used by extensively by teachers. You can access a variety of worksheets to print off and powerpoints that will clearly explain certain learning objectives.
This website contains lots of worksheets and powerpoints linked to lots of subjects.
http://www.bbc.co.uk/schools/websites/4_11/ this page has links to all bbc's schools pages.
http://www.primaryhomeworkhelp.co.uk/ this is an excellent website that covers all topics covered in KS2 and it is also a great resource for information on the Romans.
If your child wants to complete a mini-project on the Romans, then the information on this site will come in very handy.