Practicing the forehand groundstroke swing from different ready positions. The first ready position is with both hands on the grip and the second one with left hand on throat of racquet. Some players find starting with both hands on the grip easier if they have a two handed backhand.
Here I’m using a practice trainer from Ali Express which I got for €17 which you can fill will water or sand. https://begreatattennis.com/
Be Gr8 at Tennis was set up in Oct 2019 by Rob Cherry to help improve players of all ages & abilities along with videos and lesson plans for coaches. Plans are aimed towards a club coaching program.