To learn, you have to WANT to learn.

When I learned to crochet (at 16), I was a challenging student who didn't catch on well...but I seriously wanted to learn.  Please, please I pleaded. As a last ditch effort, Betty went into her pattern repertoire and showed me the granny square. If I didn't "get it" then and there, she was done with me.

I basically mimed everything she did - we chained, slip stitched them together forming a ring, chained, wrapped the yarn and inserted into the ring, and again, etc. I was finally enamored with the process and thought to myself "look at me, I'm doing it."

At the end of the first round, our squares looked not-so-square. Then, she flipped her square. Knowing no different and following her lead, I turned my square too and we completed round 2. Both of our squares had 4 perfect corners. Betty was proud of me...she'd done it...I had officially learned to crochet~! Perhaps it was the working in rounds that made the difference...after that square I knew I could crochet. Well, at the very least, I could crochet granny squares.

Soon after, everyone got a granny square blanket from me. Not bunches of squares sewn up together...no...I made huge, bed-sized granny square spreads, and I expected to see them on the beds of each "lucky" recipient. Happily, everyone obliged me.

...and the rest, as they say, is history....

It was not until many years later that I realized the way Betty taught me produced a reversible square--the same on each side with no distinguishable front/back, right/wrong side. As I wrote in another post, if I have a choice, reversible is my preference.  Here is the link to reversible granny square directions:
http://yarninhand.blogspot.com/2012/03/reversible-two-sided-granny-square-best.html