Match up one side of the zipper with one strip of fabric, right sides facing and pin together.

Start sewing from the bottom up.

When you get to the zipper pull, stop sewing, cut your thread, remove the fabric and the zipper, open up the zipper just a little, then resume sewing from where you stopped, sewing up to the top of the zipper.

If you're making a pouch without lining, this is when you'll want to flip your zipper over to the side, press then do a top stitch for decorative purposes. Open up the zipper, start sewing up to the zipper pull, stop, remove the fabric, close the zipper then resume sewing. (If you're sewing a pouch with lining you will want to skip this step for now and you might wanna read the pouch tutorial once that's up.)

Do the same steps for the other side of the zipper and the second fabric strip. (if you're making a pouch all you have to do at this point is sew all the sides together, on the wrong side of the fabric, making sure you leave the zipper slightly open for turning purposes).