Assemble Four-Patch Units
1. Join a light green print 1-1/4x42-inch strip and a green print 1-1/4x42-inch strip to make a strip set (Diagram 4). Press seam toward darker print. Repeat to make a second strip set; cut strip sets into forty 1-1/4-inch-wide segments total.
2. Sew together two 1-1/4-inch-wide segments to make a four-patch unit A (Diagram 5). Press seam in one direction. The unit should be 2 inches square including seam allowances. Repeat to make 20 four-patch A units total.
3. Repeat steps 1 and 2 using two green polka dot 1-1/4x42-inch strips and remaining light green print 1-1/4x42-inch strips to make 20 four-patch B units total.