A Summer's Grammar Analysis

I believe that grammar should be taught both explicitly and implicitly with a mixture of techniques. Sometimes, grammar issues arise in class and I deal with them at the moment of speaking while other times I explicitly teach my students' grammar in order to practice the rule. I find that this method is best for my students. For instance, a critical incident that happened in class recently was that I was teaching the story "A Summer's Reading". In this story, there is the theme of respect and the kids related to it very well. It occurred to me that I could use this theme to expand off their knowledge of Present Simple.
My students find it very difficult to understand the rules of Present Simple. I came up with the idea of explaining that when you talk about another person in the singular form (he, she, it) you would give them respect and therefore they get the 'S' on the end of the verb. Because we had been talking about the theme in detail they really liked and related to the idea. In the story "A Summer's Reading", George left school because he did not get respect from the teachers. George wanted Mr. Cattanzara to respect him. George respects Mr. Cattanzara therefore; he gives him something, the S. The students remember this because they always say that they give the other person respect and therefore they give them the 'S'. Every time I practice
For example in order to emphasize the difference between Past Simple and Present Perfect, I tell a story of two characters. One is an explorer who travelled the world. He died a long time ago. The other, Johnny, is a young man who is about to go on a long trip, but who has also travelled a little. The explorer went to India. He travelled to Hong Kong. He did not go to Ireland. He went to America. He did not go to Canada and he died a long time ago. Therefore, there is no chance he can do anything