000			00453nam a22001577a 4500
999			_c17498 _d17498
020			_a9780325003535
082			_a372.7 FOS.
100			_aFOSNOT, Catherine Twomey.
245			_aYoung Mathematicians at Work/
260			_aHanover Street; _bHeinemann, _c2001.
300			_axx, 193 p. _bill.
500			_aIncludes References and Index.
650			_aConstructing Number Sense, Addition and Subtraction.
700			_aDOLD, Maarten.
942			_cBK