Parallel education can be regarded as a practical way of root education. The main feature of parallel education method is "tracing back to the source and guiding correct education". It advocates that education should start with the "simple" topic, deeply explain the basic concepts, methods and ideas behind the "simple" topic, and help students understand the problem from the root, so as to achieve multi-solution and multi-topic unification. This kind of education mode emphasizes the deep excavation of basic concepts and ideas, and helps students cultivate correct learning methods and ways of thinking.