善于设疑是教师教学艺术的主要表现之一。在生物教学中,教师应根据教学内容、教学目的和教学进程,精心设置一些富有启发性的问题。通过巧妙设疑可以为学生制造“愤”“悱”情境,激发学生探索求知的欲望与热情,从而使学生集中注意力;可以开阔学生思路,启发学生思维,使学生抓住学习重点和难点;可以发挥教师的主导作用,使师生的思路能协调一致,从而培养学生的思维能力。一、在导入中设疑直接利用课题导入设疑,可以使学生从开始上课就兴奋起 Being good at doubting the doubts is one of the main performances of teachers’ teaching art. In biology teaching, teachers should carefully set some inspiring questions according to the teaching content, teaching purpose and teaching process. By cleverly setting doubts, students can create “angry” “悱 ” situations, inspire students to explore the desire and enthusiasm for knowledge, so that students concentrate; you can broaden students’ thinking, inspire students thinking, make students seize the learning Focus and difficulty; can play a leading role of teachers, teachers and students can make the idea of ​​coordination, so as to develop students’ thinking ability. First, in the introduction of suspected direct use of the project into question suspect, students can start from the school excited