一、善于运用教学语言艺术帮助学生形成清晰正确的概念明确精练、生动形象的教学语言能充分发挥语言的直观作用。所谓明确,就是语言表达要清楚明白,遣词用字要严谨正确。在概念教学中,往往一字一词之差就会导致概念的内涵完全不同。例如,酸性溶液和酸溶液,两者涵义差异甚大,前者溶液为酸性,但溶质不一定是酸;后者溶质一定是酸。因此,教师要字斟句酌,仔细推敲,做到语言明确,才能帮助学生形成清晰正确的概念。在语句明确的基础上,还要注意精练。精练的语言 First, good at using the language of teaching to help students form a clear and correct concept Clear and vivid teaching language can give full play to the intuitive role of language. The so-called clear, that is, language should be clearly understood, the words used to be rigorous rigor correct. In concept teaching, often the difference between word and word leads to a completely different conception of concept. For example, the acidic solution and acid solution, the meaning of both very different, the former solution is acidic, but the solute is not necessarily acid; the latter must be acid. Therefore, teachers should carefully consider carefully and scrutinize the language to make it clear, in order to help students form a clear and correct concept. On the basis of a clear statement, but also pay attention to scouring. Scouring language