Welcome from Ontario, Canada. You can draw out the original block on graph paper. You then enlarge the pattern by redrawing it on graph paper but increasing the number of squares per piece. Example increase a 4 square piece to 8 squares and you have doubled the size. After you have it all redrawn bigger on the graph paper, you cut along the lines and then ADD the seam allowances to the pieces to get the cutting pieces size. You can also enlarge a pattern by photo copying it bigger.