教学预设重视和追求的是显性的、结果性的、共性的、可预知的目标;课堂生成重视和追求的是隐形的、过程性的、个性的、不可预知的目标。教学过程中预设与生成是相互依存的。没有预设的生成往往是盲目的、不负责任的课堂;没有生成的预设往往是低效的、不精彩的课堂。教学应该在预设和生成的平衡中发展。 The emphasis and pursuit of teaching precepts are explicit, consequential, common, and predictable goals. The emphasis and pursuit of classroom teaching are invisible, procedural, individual and unpredictable goals. The default and generation in teaching are interdependent. No default generation is often a blind, irresponsible classroom; unprepared presets are often inefficient, not classic. Teaching should develop in the balance between pre-set and build.