Sew strips together into stratas. Press the seams toward the darkest strip. Layer them right sides together with colors going in opposite directions as seen above. Seams will be going opposite directions for easy matching.
Measure the width of the stratas and cut blocks that size. Cut in half diagonally and sew the 2 sets of triangles into blocks.
You will have 2 different kinds of blocks. I call the little square up in the corner the 'eye'.
Place the blocks with the 'eye' in the same position on all of them, alternating the 2 kinds of blocks. It will automatically form a twisting pattern with a light twist and a dark twist. You can make it scrappy or in just 4 fabrics.
Here is a baby quilt made with just 4 fabrics.