Teaching Using Zoom and Ipad Pencil

This semester I am teaching Linear Regression Model for a class of around 150 students. As the classroom is very large, it is impossible to write on the blackboard and I need to rely on slides. However, sometimes, I would like to show the derivations. I found the following works well with me and would like to share with everyone. Detailed Steps: Install Zoom on both computer and iPad. Have Apple Pencil Ready.