Here's my formula for a quick and easy kid-sized quilt:
You need about a yard of a focus fabric, about 3/4 yard for sashing, and 5 fat eighths of complimentary fabrics for vertical stripes.
I chose this cute elephant fabric for my focus fabric:
Cut 5 strips 4 1/2 x 20" from the focus fabric
Cut 1 strip 4 1/2 x 20" from each of the 5 fat eighths,
Cut 10 strips 1 1/2 x width of fabric for the sashing. Subcut those into twenty 1 1/2 x 20" strips.
Sew a narrow sashing strip to both sides of all the wider strips:
Subcut the sewn strips into 6 1/2" squares:
Arrange the blocks, 5 across by 6 down, lining up the strips for a woven effect.
Sew together row by row. Add a 1 1/2" inner border of sashing fabric, and a 4" outer border of focus fabric:
And your quilt top is done! Size of the finished quilt top is 40 x 46", a great size for a kids quilt.