This is a report rubric I have used successfully within my Year 3 classroom. It can be adapted for older students as well. You can use this at A4 size and highlight the relevant achievements, or I like to reduce it to A5 size and staple it to each child's project. It can also be used as a self reflection for the child to complete prior to submitting their report.
As I'm new to this, I'm not sure how to add another file, in order to acknowledge who I got the border from, so I hope it's OK to put it here instead :)
Ashley Hughes and her products can be found here: