The half square triangle unit is probably the most commonly used patch in a quilt block -- well it is second only to the square. It is made simply with two triangles, filling up half the square each -- hence the name. Take a quick look through this website, or in any quilting magazine, and you will start to notice that this half square triangle, regardless of its size, is present in more quilts than not.
Free Quilt Block Pattern
Naturally this is the perfect choice for a quilt for your own favourite "Sarah". (Note how I slipped in the spelling change here to favourite, as I am a Canadian, and to me, the word looks naked without that extra "u". However, I stuck with the true block name spelling in the title!)
This four patch quilt block is an easy one to construct. It is sewn in four identical quadrants and those are then simply rotated. Half square triangles and squares are all that this block needs.
I decided this is a perfect choice for a "scrappy" block -- using up all your little tidbits left over from other projects. But, it looks great as just a two colour block as well.
Both of the quilts illustrated are made by setting the blocks on point but with subtle changes, they look entirely different. Now it is over to you to create a quilt for your favourite Sarah!