As you have done in Sections 1 and 2, it's critical to gain your team's input when it comes to new initiatives and their satisfaction. Don't forget that these training sessions aren't about you; It's about your team.
So, give plenty of space and time for your team to give feedback about the process and progress of their training. Create a questionnaire or facilitate a group discussion where they can talk about what they've learnt and what they think about the way it's run or organised.
It's also critical to remember the starting point to refer back to. In order to know if the training to develop your team's skills has had any positive impact, you need to know what and how to measure against.
Below are a few factors you can measure:
Do this periodically so that you can make any adjustments to your training plan as necessary.