I followed Bonnie's instructions and stacked four strips of the required colored fabrics before cutting the triangles I needed with my Easy Angle ruler. That sure made it easy when I got to the sewing machine. Each pair of fabrics were all ready right sides together, so all I had to do is chain piece them. I'll have to try to remember this method for next time I cut and sew units like this.
Here's one way to assemble these units to make a block. I'm sure Bonnie has a better idea for placing these in the quilt.
Thanks for stopping by and Happy Quilting!