Red Internet Moment reporter Su Liya correspondent Peng Dan Zhuzhou report
The knowledge points that need to be mastered in junior high school chemistry in one year are only collected in two books, but it is difficult to just stack the books that are not 4 cm thick. Achieve the ideal score in the high school entrance examination. How can we help students learn chemistry better? Tang Dan, leader of the chemistry teaching and research group of Zhuzhou Jianning Middle School, told reporters that in order to answer this question well, the teaching and research group found through practical exploration that various experiments other than books can better help students understand and master knowledge points, and at the same time, they can also use practice Use your hands to learn the function by heart.
Students' "immersive" experiment makes knowledge points more solid and interesting.
"Which substance burns in oxygen to form a black solid? The answer is iron wire." This type of question is a knowledge point for the chemistry high school entrance examination and must be mastered by students. content. When students are exposed to "thin wire burning in oxygen" for the first time, the teacher first demonstrates it in class and explains the knowledge points so that students can have a preliminary understanding of the properties of oxygen. Afterwards, the teacher organized them into the laboratory, and students were divided into groups to conduct wire burning experiments.
"Iron wire burns violently in oxygen, sparks are emitted, and a large amount of heat is released, forming a black solid." Through their own hands and close observation, students also have a deeper understanding of the burning of iron wire. For such "score points" that must be scored, the chemistry teaching and research team uses experiments to deepen students' impressions of this type of knowledge points.
Hands-on experiments for students.
"What seems like a simple and easy classroom experiment actually took two classes." Tang Dan told reporters that for many experiments involving gases, teachers need to prepare and prepare them in the laboratory in advance. For some experiments, in order to ensure classroom efficiency, teachers have to test them in advance to ensure the success rate of the experiment and allow students to observe wonderful experimental phenomena.
Chemistry experiments can always arouse students' interest in exploring the mysteries of matter. Whenever the teacher enters the classroom with a bunch of instruments, the students' eyes are full of anticipation and excitement. Based on the " double minus " policy and the actual situation of students, the chemistry teaching and research team will not limit the "chemical world" to textbooks and classrooms, but leave space and opportunities to students, allowing students to move from writing exercises to hands-on experiments, and from learning to acceptance. To experience life, this kind of chemical learning not only has connotation, but also has denotation.
The teaching and research team is dedicated and always maintains the passion for education.
Two junior high school chemistry textbooks are taught repeatedly every year, just like copying and pasting. Are teachers prone to job burnout? In the view of the chemistry teaching and research team of Jianning Middle School, this phenomenon is hardly a problem. Every teacher has always maintained the passion of a gardener. Tang Dan said that times are changing, students are also changing, and chemistry teachers should also keep pace with the times.
Matter is composed of elements, just like the chemistry teaching and research group of Jianning Middle School. Although the age distribution of the eight teaching teachers is polarized, each teacher does their best to make this big family grow together.
Chemistry teaching and research group discussion.
Dai Dazheng, 60 years old this year, has 41 years of teaching experience. He was supposed to retire in mid-May, but he still stuck to the "Three Feet Lecture Hall" for more than a month without missing a class. It was not until the end of the chemistry high school entrance examination that he drew a successful end to his education career. In the eyes of his colleagues, Dai Dazheng is not only dedicated to his job, but also keen to participate in school service work. Dai Dazheng's dedication can always be seen in various volunteer service activities such as working in the canteen and protecting students from crossing the road. "Wherever there is a shortage of people in any position, he is always the first to take it."
The consistent and dedicated spirit of the "seniors" in education has always inspired all the teachers in the chemistry group.
As the youngest teacher in the chemistry teaching and research group, 25-year-old Qu Yixin came to Jianning Middle School after graduating from graduate school. Although she was a teacher for the first time, she relied on her love for education to seriously participate in lesson preparation, and often went into other teachers' classrooms to learn "true scriptures". In order to help new teachers grow up quickly, the school launched the " Qinglan Project ", and every young teacher has a "teacher".Qu Yixin also has her own master, but in fact, every teacher in the chemistry teaching and research group has helped her, carefully "digging out" every detail and link of her class, and giving unreserved opinions and suggestions to her class. Over the past year, these valuable suggestions have become her precious teaching "treasure".
In recent years, students have always gained a lot from the chemistry classes of Jianning Middle School. They have learned not only knowledge, but also felt the charm of chemistry. Tang Dan said that teaching is never-ending and teachers need to continue to explore. But facing the high school entrance examination, the chemistry teaching and research team of Jianning Middle School is always full of confidence.
