Flying geese are a widely used subunit in patchwork quilts. Each flying goose consists of a goose triangle (across the width of the block) and two sky triangles (at each side of the block). This instructable shows 3 methods of how to make flying goose blocks.
2 or more contrasting fabrics, quilters usually use 100% cotton
a rotary cutter and plastic ruler - or marking pen and scissors
iron & ironing board
washable or air-erasing marking pen