one
From the time when students first entered school, we found that students have different starting points, different personalities and different hobbies. Interest is a positive cognitive tendency of students in learning activities, and it is the most important motivation for students to acquire new knowledge, broaden their horizons and enrich their psychological activities. At present, information technology courses generally adopt the "zero starting point" system, that is, junior high school and senior high school textbooks have the same starting point. Due to the different levels of primary schools in urban and rural areas, some schools don't start classes at all, so some students' informatization level is in the enlightenment stage. Faced with students' different levels of information technology, as well as their differences in operating skills, hobbies and intelligence, teachers have to adopt hierarchical teaching methods in the classroom teaching process to meet the needs of personalized development and complete the design of this lesson.
For example, when explaining "resource manager", you can compare the following. In fact, the files in the computer are only different in form from those in reality, but they are essentially the same. They are all carriers of information. Similarly, a directory (or folder) is similar to a folder and a disk is similar to a filing cabinet. In real life, especially when students graduate, there are many forms to fill out, which are actually documents. After filling it out, put it in file bags in different categories, and put these file bags in specific positions of filing cabinets in different categories. Close the door of the filing cabinet, which stores a lot of information. If the documents are important, we will put them in a special cabinet, lock the cabinet and even add a password device to make it a safe. Then both involve file management, and starting the resource manager is equivalent to opening the door of the filing cabinet.
The compartmentalization and hierarchy of traditional filing cabinets have become the tree structure on the left side of the resource manager window here. Click around with the mouse and notice the corresponding changes on the right side of the browser window. Resource manager is more powerful than filing cabinet because it is more intuitive and convenient to use. Drive = a layer of filing cabinet, folder = file bag. They all look the same, so they all have the function of containers. Just as a large file bag can hold a small file bag, and a small file bag can be mixed with files in a large file bag, a folder can also have folders, and a folder can also be mixed with some files and placed in another folder. Therefore, the hierarchical structure of computer file management is clear.
two
Perhaps because of the aggravation of learning tasks, many students' enthusiasm for information technology courses has changed from high in primary schools to low, which is most obvious in high schools. Many students are indifferent and passive in class, and just finish the learning tasks assigned by the teacher mechanically. So divide the students into several groups before class. There are students who are particularly good at learning and can help others, and there are also students with poor foundation. In this way, the level of students in the group is quite different, which can help students with low starting point.
But there are also some shortcomings. Some students with high starting point have no patience, and those with low starting point are embarrassed to ask, which will not improve the students with good foundation. In the teaching process, teachers should treat students correctly and evaluate high-level students and low-level students together, so as to achieve the purpose of learning from each other.
three
Professor Yi Lee's hierarchical teaching mainly includes two ways of punishment. One is hierarchical teaching in class, that is, students are divided into different levels in class, and different requirements are put forward for students at different levels, emphasizing separate teaching. The second is the shift teaching system. Teachers set up teaching classes at different levels according to students' knowledge base, different learning abilities and hobbies, and students enter different classes according to their own conditions.
Layered teaching includes teaching objectives, process, assignment and evaluation effect. For those special students, let them enter the second classroom for counseling, subscribe to computer hobbies, and set up robot interest groups, computer works creation groups and informatics groups. Sometimes students raise their hands one after another, and one person can't cope. With the group leader, they can solve some problems and improve classroom efficiency.
The preliminary teaching practice shows that hierarchical teaching is conducive to improving teaching quality and cultivating excellent students in a large area, and the theory of hierarchical teaching needs to be further enriched and improved.