The third set of cutting instructions should read as follows:
Cut (1) 3'' x WOF (7.62cm x WOF) strip. Sub-cut: (12) 3'' x 3'' (7.62cm x 7.62cm) squares. Cut each square on the diagonal once for (24) half-square triangles.
For the Square Blocks Sections N9, L9, S9.
Magical 1. Place a 3 1/4" (8.26cm) Fabric M square and a matching Fabric O square right sides together (Fig. 1a). Using the drawn line as a guide, stitch a scant 1/4'' (6mm) from both sides of the line (Fig. 1b). Cut apart on the drawn line to yield two half-square triangle (HST) units (Fig. 1c). Press the seam allowances in the direction indicated by the arrow (Fig. 1d). Trace the HST Trimming Template onto template plastic and trim each HST unit using the HST Trimming Template.