Tumbling block quilt patterns are interesting as they have a 3 dimensional look due to the blocks looking like they are tumbling down the quilt.
The quilt pattern has developed several variations over the years. The traditional blocks were hand pieced and quilted. It used a diamond shape in a repeating pattern. Now there are patterns you can buy that use the strip piecing method or the paper piecing method to assemble them. Below is a video clip by Marci Baker showing one of the newer methods using strip piecing with no set-in seams.
Which ever method you choose the basic principle of placement of light, medium and dark fabrics is essential for the success of the design.
The blocks below are not for the traditional tumbling block quilt. They are another variation on the theme.