If you get lost in the wild is a children's poem with the theme of natural science, which tells us what to do if you get lost in the wilderness of nature. Introduce us to four natural compasses: (1) China is located in the northern hemisphere, and the direction of the sun is south at noon, so the sun becomes our compass; (2) At night, Polaris can show us the north; (3) On rainy days, the dense branches and leaves of big trees can help us identify the direction. The dense side of leaves is the south, and the sparse side is the north; (4) In winter, the amount of snow in ditches can also help us identify the north-south direction. Rich knowledge and beautiful poems will surely bring us and our students into the wonderful realm of nature.
From the students' debates, I found that all students have their own ideas and can fully express them. We should create such opportunities for them to show themselves and gain unexpected gains from middle school students and teachers.