Make your HST like this. take a 2 10 in squares. Right sides together, sew the outside all the way around. Cut from corner to corner on both sides. you have four HST. Make your pinwheel first. Make more HST and arrange accordingly to the pattern. I think snowflake is a pretty name for the block. Pretty much everything is HST. Good luck, sweetie. Let me know if I can be more help. Skypony