number lines with bold arrow in the middle

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  • August 15, 2012 at 12:27 pm #11194
    Julie Sumwalt
    Participant

    I know how to do number lines, but how should I handle the arrowhead in the bolded segment of these number lines?

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    August 16, 2012 at 6:35 pm #21618
    Lindy Walton
    Moderator

    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.

    July 3, 2013 at 12:54 pm #21619
    togilby
    Participant

    I've encountered the same situation; an arrowhead indicating the end of the bold segment within the boundaries of the number line.
    Hooray for the askers and the experts at Ask An Expert!
    Thank you, Julie and Lindy

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