Here is a quick lesson on how to sew tidy triangles without making yourself crazy.  The sample shown here begins as a four-inch square, although you may use this technique for any size.  The Robertson quilt is composed of triangles of different sizes, from two to six inches, in a vibrant pattern: one large triangle is surrounded by a grid of smaller triangles. These layers make the colorful triangles pop forward and the white triangles shimmer.  Even after one hundred years this busy pattern excites our eyes!

If your finished square is to be 4 inches, cut two squares that are 4 7/8th inches (3/8" for triangle allowance, 1/2" for square seam allowance).

With pencil or fabric pen, draw a line from corner to corner  of one square. Pin the squares with right sides together as shown, and the pins perpendicular to the line you have drawn.

Sew a line on either side of the drawn line. Leave 1/4-inch between the drawn line and each sewn line.

Cut along the drawn line.

Press seams toward the darker fabric and trim any excess fabric peeking out at the corners. Voila!

We used an Olfa Rotary cutter and a Creative Grids non-slip ruler for this project.