（一）在课堂教学活动中，教师应该面向谁？是全体学生还是部分学生？对多数教师及社会公众来说，他们当然会选择前者。因为根据“均等教育机会”原则，入人都有受教育的权利，人入都有受同等教育的权利。但是，在实践中教师能够面向全体学生吗？现实是，由于“有限资源”的限制， (A) in the classroom teaching activities, teachers should be facing whom? Is all or some students? For most teachers and the general public, they will certainly choose the former. Because according to the principle of “equal educational opportunity”, all people have the right to education, and all people have the right to equal education. However, in practice teachers can face all students? The reality is that due to the limitation of “limited resources”