Zippers with fabric added to the seam opening.
This is a pattern that I used when teaching year 8 students. It was quick and easy. Two tabs of fabric are added to cover the ends of the zipper these become part of the side seams.
This is not as simple are the previous zipper insertions and requires that you tack the zipper into position.
I have included a PDF, complete with spelling errors .
Download No 2 Pencil Case
You can use this same method for inserting a zipper at the top of the pouch as well.
That is enough about zippers for a while, I will be flying back to Brisbane today. There are still a number of other methods but I will return to this theme next month.