A student's progress, abilities, and accomplishments are displayed through the accumulation of their work over time in a portfolio. Samples of completed projects, completed homework, case studies, and self-evaluations can all be examples of this, maybe it is physical or digital, student's portfolio can be customized for particular projects or themes.

Source:

https://www.unrulr.com/post/the-ultimate-guide-to-student-portfolios 

Photo:

https://unsplash.com/photos/flat-lay-photography-of-blue-backpack-beside-book-and-silver-macbook-02z1I7gv4ao?utm_content=creditShareLink&utm_medium=referral&utm_source=unsplash