An ePortfolio (electronic portfolio) is an electronic collection of evidence that shows your learning journey over time. Portfolios can relate to specific academic fields or your lifelong learning. Evidence may include writing samples, photos, videos, research projects, observations by mentors and peers, and/or reflective thinking.
This 55 slide Power Point (Creative Commons) offers many suggestions from themes, vocabulary, character traits, bias, values, reflection, confidence/concerns and teacher syllabi.