We have a large 8m x 4m classroom at the back of my house.
This gives plenty of space to perform all the science experiements.
A classroom environment, modern computers with Gaphics Tablets, a full Laboratory. Not the average Tuition environment and certainly not the average Tuition.
It's like going to school. The students expect to work and in a quite environment without distractions they can. 1:1 tuition ensures that the students get just the help they need.
Students don't learn well from just being talked to, they learn best when they do experiments and investigate on their own. Thats how we teach here and it makes the difference.