Parents/guardians,
Have your child play this guessing game (below) to 100…then try playing at home without a computer using numbers to 1000 using similar clues. Parents be the clue givers and children can try to guess the number you are thinking of. http://www.topmarks.co.uk/Flash.aspx?f=ThinkingOfANumberv3
Here is another fun game that helps students identify numbers using a 1000 number line.
http://www.mathsframe.co.uk/en/resources/resource/37/placing_numbers_on_a_number_line