Your synthesis of what you have learned needs to show you can comment critically and reflectively on the ways of learning you have used. Think about what you had to learn, how you learned it and make an assessment of how well you learned it. On reflection, would you change anything? If so, what would you do differently? Your synthesis does not have to be long (e.g. one side of an A4 page), but it does need to show you can think critically about your learning, relate it to specific work (that is, the work you present as evidence), and identify what worked well and/or how you might improve your learning for future work.