Mastering the nine foundational movements is key to building strong, efficient CrossFit skills. The Level 1 Certificate Course breaks them down into three progressions:  Squats — air squat, front squat, overhead squat  Presses — shoulder press, push press, push jerk  Deadlifts — deadlift, sumo deadlift high pull, medicine-ball clean Each progression builds on the last, so solid mechanics in the basics are crucial. These movements teach essential themes like core stability, posterior chain eng