If you really love a pair of jeans and you don't want to get rid of them when they get a hole in the knee, or you don't want to spend more money on clothes for a crazy little boy after he tears up his jeans, here's how to fix them.
Step 1: Materials
You will need a sewing machine, thread that is close in color to the denim, scrap denim*, scissors, pins, and an iron.
*Alternative fabrics that work for patching jeans include most bottom weight fabrics such as twill and poplin. Poplin is especially good for patching stretch denim. Do not use light weight cottons such as broadcloth and calico. They are not strong enough and will tear in a short amount of time.