Assemble Half Square Triangle Units
- Draw a diagonal line from one corner to the opposite corner on each side of your red squares.
- Pair a red 4-7/8" square with a black square of the same size. Pair the red 5-1/4" square with the black square of the same size. Use my quick sandwich method to make half-square triangle units from the pairs.
- You should now have four red/black 4-1/2" x 4-1/2" half-square triangle units for block corners and two red/black 4-7/8" x 4-7/8" half-square triangle units that will be used as starter units for the block's center.
Make Quarter Square Triangle Unit for Block Center
You'll turn the larger, 4-7/8" red/black half-square triangle units into quarter square triangle units.
- Draw a diagonal line from one corner to the other on the reverse side of one of your larger red/black units.
- Align the two larger red/black units right sides together, placing unlike colors on top of each other.
- Sew a seam 1/4" on each side of the marked line -- just as you did to make the original half-square triangle units. Trim on the center line, cut apart and press. The resulting units should measure 4-1/2" square. One will not be used, set it aside for another project or make a second block to use in a throw pillow cover.
Also see: Quick Pieced Quarter Square Triangle Units
Make Strip Pieced Units
- Sew the two 19" strips together lengthwise. Press seam towards the darker strip.
- Square up one end of the strip set and then cut four 4-1/2" long segments from it.
Assemble the Churn Dash Twist Block
- Arrange the components into three rows as shown. Sew units in each row together, pressing seam allowances towards the black/gold units.
- Sew the rows together to complete the block. It should measure 12-1/2" x 12-1/2".
