“猜想与假设”是科学探究的核心环节,也是当前化学探究式教学中的薄弱环节。针对“猜想与假设”的形成途径及其品质,从“猜想与假设”情感培养、方法指导、强化化学变化本质教学、加强对学生发散思维训练、帮助学生建立完善的知识结构和认知结构、通过化学探究学习实践等方面,提出了中学生“猜想与假设”能力培养的教学策略。 “Conjecture and Hypothesis” is the core of scientific inquiry, and it is also the weak link in current chemistry inquiry teaching. Aiming at the formation and quality of “Guess and Hypothesis”, from the “Guess and Hypothesis” emotion training, methods to guide and strengthen the essence of chemical change teaching, to strengthen students divergent thinking training to help students to establish a sound knowledge structure and cognitive structure, Through the study of chemical exploration and other aspects, this paper puts forward the teaching strategy of cultivating the ability of “guess and hypothesis” for middle school students.