Final Answer:
The most striking difference between Mike's first and last session is his significant improvement in skill and confidence.
Step-by-step explanation:
Over the course of Mike's first and last session, there has been a notable transformation in his skill set and confidence level. In the initial session, Mike might have displayed beginner-level skills and hesitancy in executing certain tasks. However, by the last session, he has likely gained proficiency, showcasing advanced skills and a more assured approach. This improvement could be attributed to consistent practice, guidance, and a learning curve throughout the sessions. Whether it's acquiring new knowledge, refining techniques, or building confidence, the contrast between Mike's initial and final sessions highlights the effectiveness of the learning process and his personal growth in the subject or activity.