王彬是一位勤奋好学的学生．他不仅学习勤奋、刻苦钻研，而且培养了良好的学习习惯．老师上每一章、每一节课之前，他都先预习或自学有关内容，上课时做到“心中有数”，牢牢掌握了学习的主动权．在上《勾股定理》这一单元之前，他带着“怎样学习勾股定理及其逆定理”的问题去 Wang Bin is a studious student. He not only studied diligently and diligently, but also cultivated good study habits. Before each chapter and every lesson of the teacher, he first prepared or self-learned the relevant content, and when he was in class, he was “very aware” and firmly grasped the initiative of learning. Before the unit of “Pythagorean Theorem”, he went with the question of “how to learn the Pythagorean theorem and its inverse theorem”