叶青老师讲电路的“串联和并联”

周莉娜老师讲“制取氧气”

关于课程的教学设计

On the morning of September 20, two open classes were held for the third grade students at Huamei Foreign Language School in Luohu District, Shenzhen: "Series and Parallel Connections of Circuits" by physics teacher Ye Qing, and "Preparation of Oxygen" by chemistry teacher Zhou Lina. Those who are good at teaching will get twice as much work as a teacher. The teachers and students present praised the two old teachers for their virtues and skills.

Let students first make the light bulb shine and think about how many ways there are to connect the circuit? Then guide them to draw the circuit diagram and analyze the circuit diagram by analyzing the direction of the current, the closing of the switch and the usage of electrical appliances. Students summarized and summarized the key points of knowledge in this div based on their intuitive experience, including the concepts and characteristics of series circuits and parallel circuits, and then naturally left a perceptual impression.

Teacher Ye further contacted the street light circuits of Shennan Avenue and the lighting conditions of the classrooms, excavated knowledge in the situation, deepened cognition, and broke through the key points and difficulties in the application of knowledge. Closely follow the situation and generate situational evaluation on the spot, making the class more interesting.

Throughout the class, the teacher was full of passion and his language was vivid; the students thought actively and interacted actively.

Before class, Teacher Zhou printed a "Study Guidance Plan" for students to use. From the course standard requirements, classroom guidance (including "make mistakes"), and classroom training, Teacher Zhou clearly explained the knowledge points and trained abilities. Do it thoroughly.

At the beginning of class, the teacher's demonstration experiment was turned into a student group experiment, and students were urged to observe carefully and standardize every detail of the experimental operation to ensure that they would not lose points and get full marks in the next year's experimental operation assessment. Through independent hands-on experiments, students master the process of oxygen production, understand the catalytic effect of catalysts and related concepts of decomposition reactions, and put forward higher requirements for the goal of scientific thinking.

Finally, there are hierarchical assignments, with face-to-face review and mutual review; teaching students in accordance with their aptitude, providing a way to climb the ladder, guiding students to move to higher levels, and injecting love and sincerity into the classroom. Students feel like they are sitting in the spring breeze. As a result, every student has a satisfactory result.

Teacher Ye Qing said: "On the first day of school, I wrote down the names of the students in the two classes of the third grade. I also asked the original teachers to understand the students' learning basics, and selected practical teaching methods based on their ability differences. Pay attention to intuitive experience, guide generalization and abstraction, connect life examples, and root the pleasure gained from the correct use of knowledge and the lessons of incorrect use of knowledge that lead to failure or even consequences into the thinking soul, remind each other, and regard it as something that will never be forgotten in a lifetime. life experience.”

"When preparing lessons, you must first prepare your mind, so that you can achieve good things and save things from mistakes." Teacher Zhou praised the physics teacher and shared: "Everything is done in advance, and failure in advance will lead to failure. Before class, I carefully wrote a tutorial plan. In order to implement the operation during teaching, I prepare the details myself to ensure that the group experiments are carried out. Finally, I use multi-level and multi-form classroom tests to thoroughly understand the test points, and provide high-level guidance and inspiration for each student’s practice in class.”

When young teacher He Jiayi talked about her experience after class, she said excitedly: "Senior Ye can start from the students' actual situation and fully believe that students can learn by themselves by combining existing knowledge and experience. Teacher Ye pays attention to students and inspires them. Teachers and students interact harmoniously. Effectively expands the breadth and depth of physical thinking.”

"Teacher Zhou has integrated almost every knowledge point div into student activities. Experimental operations, experimental descriptions, and practice reviews among students are all just right, and can even be called extremely precise."

In addition to teaching junior high school students, Teacher Ye Qing also teaches physics to senior high school students. Zhou Yanjun, a freshman in high school, told her parents that she suddenly understood the physics class that she couldn’t understand before. “I want to choose a major next semester. I want to study science!”

Zhou Xiang, who retired from the Institute of Educational Sciences and later became the curriculum director of Huamei, praised the two veteran teachers for creating a living and warm thinking classroom for students. Real situations allow students to discover problems, ask questions, and use the knowledge they have learned to analyze and solve problems. Study method guidance and enhance learning confidence. The teacher's class is a source from which streams of knowledge can flow.

In this activity, the "teaching" was practical, the "research" was in-depth, and the "grouping" was powerful, which reflected the noble and ancient charm of Huamei teacher "the jade pot contains the heart of ice, and the ink pen writes the soul of the teacher".