1) Arrow parts 2) Indentations 3) Record-keeping cuts 4) Scoring records 5) Small v-shaped cuts 1) Cuts 2) Serrates 
grooves
Small indents made by the pattern maker, Notches are shaped like diamonds or triangles that are printed on the cutting line of a pattern outside the seam allowance, to indicate where the seams should meet or where another pattern piece should fit. They ensure that two pieces of fabric will come together correctly when sewn together.
Diamond shaped marks that stick out beyond the edge of the pattern, to help you to line up all the pattern pieces when you sew the garment. They come in pairs to be matched up.