Reasonably put forward conjectures, cultivate innovative spirit and infiltrate core literacy.
Dewey once said: "Every great achievement of science is based on bold fantasy." The conjecture about mathematical problems is actually a kind of mathematical imagination and the embodiment of innovative spirit. In mathematics teaching, students should be encouraged to make bold guesses and learn mathematics creatively. Let students experience observation, experiment, guess, proof and other mathematical activities, share ideas and exercise mathematical thinking.