Piecing Techniques
How to Test your Seam allowance for an accurate 1/4″
http://scrap-therapy-quilts.blogspot.com.au/2015/09/upping-furling-game_3.html
http://blog.modafabrics.com/2016/01/tip-jar-half-triangle-squares/
Perfectly pieced Half Square Triangles
http://www.vanessachristenson.com/2013/02/v-and-co-how-to-make-dresden-plate.html
http://www.blossomheartquilts.com/2016/01/hst-tutorials-tips-accuracy/