“演谬”教学,即教师在教学过程中有目的、有意图地设“谬”,让学生去思悟、去鉴别。然后受教师的诱导而返“谬”归真。本文主要论述瞬时演谬、课时演谬、篇目演谬等。主要长处:有利于面向全体学生;有利于学生全面中握知识并化知识为能力;有利于学生个性主动健康发展;有利于培养学生的创新能力。施教者必须精心设“谬”,周密准备,彻底纠“谬”。 “Deduction” teaching, that is, teachers in the teaching process has a purpose, purposefully designed “谬” to allow students to think and identify. Then he was induced by the teacher and returned to “authentic”. This article mainly discusses instantaneous deduction, class deduction, and deduction. The main strengths: It is beneficial to all students; It is conducive to the students to fully grasp knowledge and knowledge; It is conducive to the active and healthy development of students’ personality; It is conducive to the cultivation of students’ innovative ability. Advisers must meticulously set up “谬” and carefully prepare and thoroughly correct “谬”.