Each Teacher understands as per his / her own capacity and explains to the students to his best.
The lesson is explained as one has understood, it can be imagined as a focused source of light that exists and another light source with more wastage that gives more light and vice versa.
Students understand better if instead of being explained the topic is enlivened for them, it can be understood by this illustration: To explain gravity, we can explain as the Earth being imagined as hanging in space, all objects including water and sea water should fall off in space, but some force is holding water and objects on earth and this is called gravity.
Our learning from “Can You Teach A Zebra some Algebra” by Debashis Chatterjee
Ajay Vijayvargi, Kusum Dangi, Tarun Mishra & Usman Gani - The Fabindia School