number line with shaded circle

[Chris Clemens]

Ok, I know I have seen this somewhere but it has been awhile and I have forgotten.
I have number lines with shaded rays on them. There are closed circles and open circles on the line above the number. Do I put the character 1,2,3,4,6 for open circle above the number and a full cell for closed circle? I know I need to shade in the number line tactually where needed, just not sure about the circles.
Thanks

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[Chris Clemens]

There is more:
I also need to make brackets and parenthesis on the number lines.

[Chris Clemens]

Attached are the braille symbols used for creating a number line. The Guidelines for Mathematical Diagrams has an addendum that deals specifically with number lines.

Betty

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