Dividers between sections and documents are highly recommended. Papers in the portfolio should be neat and clean. Although many assignments, research papers, and other documents should be in APA format, the section title pages do not have to meet that criteria. There should be six or seven sections to the portfolio. One section is the introduction.
Students have the option of adding a seventh section of their choosing.
This may be beneficial if you are seeking to use the portfolio for a national award or accreditation. The original numbering used on assignments and papers is sufficient. Original papers and work are acceptable if they are of high quality. Obviously, there is some judgment involved. Work should be neat and appropriately formatted.