在“变式”训练中发展小学生的思维能力□黄传博后进生对数学概念和方法的掌握需多次反复，而简单的重复易产生厌倦的心理。后进生多的班级，学生间的层次多，差异大。在同一课堂上，对相同的数学内容如何做到调动各层次学生的思维积极性，使他们都学有所得，确非易事。为... Developing Primary School Students' Thinking Ability in “Variant” Training □ Huang Chuanbo Post-graduation Students need to master the concepts and methods of mathematics repeatedly, while simple repetitions can easily lead to boredom. After class and students, students at different levels, the difference is large. In the same class, how to mobilize the thinking enthusiasm of students at all levels for the same mathematical content so that they all learned something is not easy. for...