Reply To: number lines with bold arrow in the middle
Hi Julie. I can't say I have ever seen a number line like these, where there is an additional arrowhead printed on the line. Does anyone else have experience with these?
Since distinctive coordinate markers which are superposed on a number line are moved to the line above, directly over the scale marks they cover, I suggest brailling a one-cell arrowhead (right- or left- pointing) above the appropriate location as you would any of the other markers we are given in TG 6.5.1.4.