In open classes, students with excellent grades are often selected from one class or two or three classes to build temporary classes. Such an open class is unfamiliar to both teachers and students, and even there is a gap between students. This will easily lead to the tacit cooperation between the two, thus affecting the overall effect and atmosphere of the classroom. Therefore, it is suggested that some students who are more active in the classroom can be found appropriately, because such students can also add a color to the classroom. This makes it easier for open classes to shine.

Second, it was established in advance.

Warning in advance is arming in advance. This also tells us that when there are preview tasks to be arranged, we should dock with the class teacher in time. Entrust the preview requirements to the class teacher in a written and oral way to prevent one of them from being forgotten or improperly implemented, which will bring adverse effects.

Third, grain and grass come first.

Courseware must be installed in advance before the open class begins. After the installation, unplug the projection line, then check and try it on the computer. In order to avoid the problem of unknown failure when it is officially started.