The days are long and the years are short

After giving up on a (fairly simple) Entrelac dishcloth, I am going to take a class in the method. Sunday, Feb. 8th. at the yarn store near my neighborhood. I am looking forward to it, but I have to choose a yarn for it. Entrelac usually looks nice in long varient colors.

I wonder if I don't understand how Raglan sleeves are constructed. The top of the garment is made of the sleeve and the top of the back, right? The front comes to a point, so it can't contribute to the top edge. The sloped edge of the back goes on for at least an inch longer than the sloped part of the sleeve, which is confusing me. The sleeve needs to meet in order to close the sleeve (to make it a tube, for the arm). The front sloped edge seems to be off from the sleeve by the same amount, so maybe the sloped edge of the front and the sloped edge of the back are supposed to connect under the sleeve?

This is a site that instructs you on the finer points of knitting (and sells stuff).