Proportional numbering for number line

[SHELLEE KOTSCHWAR]

My teammate and I are in disagreement on proportional spacing.  I believe the whole numbers on the attached number line should be proportionally spaced to represent accurate representation of the print.  The attached braille copy has wider spacing between the whole numbers to allow for the fraction.  Is this correct?  Thank you

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[Lindy Walton]

Proportional spacing is important to maintain. To show a point halfway between, ideally the lead line should be drawn as a tactile. Simple pin pricks on the back of the page are quick and easy, but if this is meant for production then I understand the temptation to use (456) instead. If you do this, it must be identified in a transcriber's note as a lead line, otherwise it looks like a math symbol.

If you will be using (456) as the lead line you will need to put three (2356)s between each tick mark in order to align halfway between the whole numbers. Start the number line at -3 and end it at 4 which allows room for the x label. (GSTG 6.5.1.10, third bullet, says you can omit unused portions of the line in order to accommodate a long number line.) If you feel the student needs to know that the print number line goes from -5 to 5 you can say so in a transcriber's note.

It's not clear to me whether the 5/2 point requires a (123456) above the number line. The blue markings seem to be arrowheads. It seems to me that it is simply pointing to the halfway spot on the number line, which is labeled below with the fraction.

Other things to fix in your transcription:

--There is no tick mark at the 5/2 point on the number line; do not use one in braille.

--The letter x should be included at the right end of the number line.

--Delete the errant symbol in the numerator (the first (34) symbol).

--I believe the fraction can be on line 10 unless that means the vertical line is too short. (GSTG 6.5.1.10, fifth bullet)

I hope this helps clarify the issues. If you think I have misled you, please let me know.

Lindy

[SHELLEE KOTSCHWAR]

Thank you so much for your expertise.   I will pass on to the transcriber to correct.

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