正确的观察方法有许多，例如对比法、类比法、分类法等都是正确的观察方法，

There are many correct observation methods, such as comparison method, analogy method, classification method, etc. are all correct observation methods. In addition, in the practical teaching, teachers should allow students to use hands, eye and brain, and students to understand themselves Why learn to observe, and how to observe, so that students can develop better.

There are many correct observation methods, such as comparison, analogy, classification, etc. are the correct observation method, in addition, teachers in practical teaching, to let students do, eye and brain, to let students understand why they learn to observe, and how to observe, so as to better allow students to be developed.

There are many correct observation methods, such as contrast method, analogy method and classification method. In addition, in practice teaching, teachers should let students practice, move eyes and brain, let students understand why they should learn to observe and how to observe, so as to better let students develop.<br>