I can pretty much assure you that once you start working with felted wool you will want to do more. They make wonderful table toppers, candle mats, pin cushions, etc. Many LQS are now carrying felted wool in small cuts, that are much smaller than a FQ. But it is very expensive. I suggest ordering a scrap bag like Bree suggested.
It sounds like your class in embroidery may be focusing on a Penny Rug type sampler where you embroider many different stitches on to wool circles appliqued to squares.