To wind your bobbin, start by placing your spool of thread on the machine, and threading the (first) top thread guide, as you would if you were threading the machine.
Then look for another thread guide that is out of place, down lower or off to another side, and wrap your thread around it once.
Then take a look at your bobbin. There should be a tiny little hole on the side for you to put your thread through. Thread from the inside of the bobbin, out, so your thread sticks out the side an inch or two.
With your thread guides still threaded, look for a little metal shank at the top of your machine somewhere. It will look like this:
Snap your bobbin onto it, and push the shank and bobbin over to the side with the thread stopper (round white thing).
Press your foot down on the pedal and begin winding the thread onto the bobbin! You'll want to hold on to your thread at the very first, to make sure it doesn't slip out of the hole.
Stop before the bobbin "overflows", press the shank back to it's original position, and snip your thread!
To insert and thread your bobbin into your machine, first slide off, or fold down the section in the front of the bottom of your machine.
Underneath is where you'll find the bobbin case:
Insert a bobbin, leaving a few inches of thread sticking out. Pull that thread through the little notch in the side of the case.
Then pull the thread through the slit on the side, and under the "finger" (the Pinocchio nose looking thing)
Holding it by the tab again, insert the bobbin case back into the machine.....
Being sure that Pinocchio's nose is fitted into the little crevice created for it.
Then turn the handwheel on the side....
While it's down there, it will magically grab the excess bobbin thread....
And when the needle comes back up, it should have your bobbin thread with it! Exciting, right??
Then simply grab the thread with your fingers and bring it to the back with your top thread!
Ta-da! Ready to sew!! :o)