教学反思可以促进教师的成长,而且通过反思调整后续教学,能促进师生共同发展。作者主要谈谈对《用二分法求方程的近似解》这一节的教学设计和反思。 Reflective teaching can promote the growth of teachers, but also through reflection to adjust the follow-up teaching, teachers and students can promote common development. The author mainly talks about the teaching design and reflection on the section “Approximate solution of the equation by dichotomy”.