Scikit learn and suggestions

Hello everyone. I am a complete beginner and only knows python. While attending lectures sir always say that(in supervised learning) that you don’t have to write code just read it and play with it. But how can I know implementation by doing just that, i couldn’t even understand scikit learn because it is only lab. So pls tell what should be my procedure to do this shall I first cover all lectures then do scikit learn or vice versa

I suggest that you first complete all the lectures and labs.