Half-square triangles are a go-to traditional quilt block element. They are so easy to make, I had to include them in the 2015 Adventure Quilt. Once you see how fast these are to stitch, you may find that this month's block of the month will turn into blocks of the month with many layout options. October's Block of the Month in The 2015 Adventure Quilt is the Triangle Medley. To create the block, use the 5-in-1 Sliding Gauge. BASIC SKILLS NECESSARY Rotary Cutting SIZING / FINISHED MEASUREMENTS 12-1/2" x 12-1/2"