PYP PE: Students deciding upon how to be assessed (Net Games)

In the past I have had predetermined summative assessment tasks for the units that I teach in PE. Over the past couple of years, I have tried to involve students much more in the decision making process in regards to both formative and summative assessment. I have provided an example below (see picture) of the 3 options for summative assessment that my grade 4 class came up with today for their Net Games unit. I will create the worksheets and post them next week once the students have had time to complete the chosen tasks. I believe that allowing the students to have more input into both formative and summative assessment allow them to take more ownership over their learning and provides them with more stimulating activities as they have chosen them. My students were also able to determine what criteria were most important during this unit. Stay tuned for examples of student work next week. Thanks!