Why is it important to have after-school chemistry tuition?

Concrete concepts are those experienced by sensations or perceptions, e.g. finding the difference in various textures of the fabrics, while abstract concepts are without any physical or direct representation. They are not present in the physical world but are linked with metaphors, emotions and abstract actions like thinking and imagination.
Our science subject-based learning is understanding the concept which a teacher or tutor delivers. The next sitting to them is the brains of those pupils who are either willing to grab the concept or ignore those due to any of the reasons they may encounter at that moment. Such as their physical health, mood swings, lacking coordination with the teachers or teachers' delivery issues. These all matter when a student is sitting in a class to learn abstract learning.
Chemistry, Physics, or any subject like that needs brain coordination between the teacher’s spoken words and the activation of the brain's neural network. When a brain listened to a new concept, it encodes it into long-term semantic memory and stores this new information. A study presented in Nature Journal (1) concluded that although both cerebral hemispheres maintained semantics, the left hemisphere preferred tangible notions over abstract concepts. Semantics involved the co-occurrence of the activation and inaction of separated cortical networks. The human brain is an example of a continuous semantic space. The brain employs dispersed cortical networks to encode concepts and links between concepts to allow conceptual inference and reasoning. These cortical networks encodes the information and store it as long-term memory action of the brain.
Further, there is a link between retrieval failure and long-term memory. Retention of learned concepts may need to be improved due to competition between new upcoming concepts and stored ones.
It’s important to bring the information from long-term memory storage to the conscious part of the brain. A normal human brain retrieves the recently given information after several rest episodes. Though the capacity to store information is finite, retention is limited. Before destruction of old memories retrieval cues may help the students to keep the concepts and words accordingly.(2)
After-school tuitions are the way to provide a retrieval cue. That helps to keep the brain's cortical parts to retain and retrieve the provided abstract information.