国家教育部制定的《全日制义务教育数学课程标准》(实验稿)中,强调数学学习不能单纯依靠模仿和记忆被动接受知识,而应在老师的引导下,由学生进行自主探索,通过观察、实验、猜测、验证、推理等数学活动,将数学学习变成学生主动参与的、生动活泼的过程。让我们以“梯形的中位线定理”为课题,展开思想的翅膀,体验一下自 In the “Mathematics Curriculum Standard for Full-time Compulsory Education” (experimental draft) formulated by the Ministry of Education, it is emphasized that mathematics learning cannot rely solely on imitation and memory to passively accept knowledge, but should be guided by the teacher to conduct independent exploration by students, through observation, Experiments, guessing, verification, reasoning, and other mathematical activities transform mathematics learning into a lively and active process in which students participate actively. Let’s take the “trapezoidal median line theorem” as a topic, start the wings of thought and experience