Nice quilt and tumbling block pattern. It is an eight pointed star (45 degree diamonds) with tumbling blocks around it. Go to:
http://incompetech.com/graphpaper/ They have a 6 point (60 degree) on the tumbling blocks grid, but you could get the idea. Color it out so you can see how it is constructed, then print out the equilateral triangle grid, cut and lay it out for the correct layout as it is the 45 degree. Hope my directions don't confuse you, but it is easier to see with their 60 degree grid.[h=3][/h]