Jimu news reporter Guo Qian
Correspondent Zhang Yingjie Zou Yuqing
Cells are the most basic living systems and the basic units of complex life activities. How do tiny cells make up this world? On November 1, Jimu News reporter learned from Wuhan No. 2 Middle School that since the end of October, under the organization and leadership of yuan Jingyun, the biology teacher of the school, all classes in the first grade of high school jointly held a theme activity of making "cell model exhibition", and the students understood cells more deeply and more carefully in this activity.
"On paper, I finally realized that I had to do something about it." In this cell model exhibition, students have made "enlarged versions" of plant cells and other models by hand. If textbook knowledge is a glimpse of the first sight with the cell, then the model making is the first head-on confrontation between the students and the cell, as for the feeling of the head-on duel, many students invariably said "difficult".
At the model exhibition, Qing Minxin's works received the amazement and praise of many students. What she does is a structural model of plant cells, chloroplasts, mitochondria, lysosomes, vacuoles... In her model, the structure of plant cells is self-explanatory. "It sounds simple, but the actual operation has encountered many difficulties. Care and patience are greatly needed. "Qing Minxin said that she remade it three times for a small model." For the first time, I forgot about the lysosomes, the Golgi apparatus, but made the endoplasmic reticulum into two. The second time, a thylakoid membrane and a nuclear pore were added. However, Qing Minxin said that the three handmade times made her implement the knowledge points of the teacher's class into the details, and also made her memory of the knowledge points more solid.
Painted clay, felt, comics... The models in this exhibition have their own characteristics, and among the works with thousands of postures, a unique and exquisite "felt plant cell" with unique materials is unique. "I happened to learn felt in the summer, and I used it as soon as I had the inspiration." Creator Xu Yuke said, "The process is very difficult, the hand has been poked several times by the needle, but in the end it is more fun." ”
Many students said that making handmade models is a double test of knowledge mastery and hands-on ability, through this activity, everyone in the production and visit of other students to make the cell model of the exquisite structure, marvel at the wonders of life and natural magic, glimpse life between the color mud, sigh nature under the pen and ink, but also in the peers of mutual competition, mutual appreciation, mutual achievement, happy learning.
"The students showed their talents while learning knowledge through the activities. The school hopes that through such activities, students will be able to grasp the structure from vague to handy in their own hands, from half-understanding of the details to handy, and the understanding of functions from confusion to initial experience, each with their own experience. Teacher Yuan Jingyun said that the exhibition is still continuing, and students can go to the exhibition at any time to learn and communicate with each other.
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