Originally Posted by JudyG

They want you to draw a line down the center of the 9-3/4" strip, which makes it into two 4-7/8 squares. You then draw a line diagonally from corner to corner of each square. You then sew 1/4 each on each side of the line, then cut the squares apart on the drawn lines, and you will have 4 half-square triangles. Many of us increase the size of the strips to 5" x 10" and then after cutting the squares apart we trim up the blocks instead of messing around with the 4-7/8" measurement. I hope this helps.