|                报告人:  |                              University Osnabruck,Germany Prof. Inge Schwank  |           
|                报告题目:  |                              The importance of the number construction sense for arithmetical insight as a basis for algebraic thinking  |           
|                报告时间:  |                              2010年3月12日(周五)下午3:00-5:00  |           
|                报告地点:  |                              3号楼3楼报告厅  |           
