Question: Is the @ in niñ@ substituting niño/a?

[lblanco]

I have been told that it is politically correct to translate materials using los/las, niños/as. Traditionally I have used the masculine (el, los, niño, niños) in all my translations.

Last night I was at a meeting where someone from Mexico told me that the "@" sign is now being used in los/las---i.e., l@s, niños/as---i.e., niñ@s to signify both sexes in a sentence.

Sample sentence:
Estoy de acuerdo que mi niñ@ sea asignado a la clase de inglés intensivo.

Is this correct