[教材简析]人教版课程标准实验教科书六年级上册第一单元《位置》安排了两个例题:例1教学用数对表示位置;例2教学在方格纸上用数对确定位置。用“数对”表示位置、确定位置,是新 [Textbook analysis] PEP curriculum standard experimental textbook sixth grade on the first unit “location” arranged two examples: Example 1 teaching figures that position; Example 2 teaching on the grid paper with a number of pairs to determine the location. With “number pairs ” said the location, to determine the location, is new