Clarisse McClellan's Daughter

A slipknot is the one thing that people have the hardest time with when I teach knitting.

The way I do it is by holding my left hand palm-down, the tail of the yarn tucked between my thumb and my palm. I wrap the yarn over the top of my first two fingers, under the bottom, making sure that it crosses the other strand, the over the top again, closer to my knuckles than the previous strand. and back under again. Basically this way you have an "X" on the underside of your hand and two strands running parallel on the top.

reach under the strand closest to the tips of your fingers and grab the top of the strand closest to your knuckles. Pull it through, and there's the slip knot. Not sure this will help or these directions make sense, but it's worth a shot?

Also, what method are you using to cast on? Because depending on what technique you're using you technically may not need a slipknot!