Mathematics tutoring lessons to help high school students better perform academically

I am currently studying at King's College London for a degree in physics.
I am deeply passionate about sharing my knowledge of mathematics at GCSE and A-level grades. My goal is to convey a fundamental grasp of important notions, not simply abstract reasonings which are hard to learn and use.
Regarding the structure of the tutoring sessions, I will be glad to accommodate the tutee's specific needs and questions whether it be a complementary explanation of a concept or help practicing exercises.