This is news to me. Source?
"The children were sorted in to two lines by gender then ordered by height"
You might substitute "sorted by height" but its certainly not a correction. While "ordered into lines" would be an error.
The sorting office for a postal service.
What do you do when you sort your washing?
That's because it's not true.
https://www.merriam-webster.com/dictionary/ordering
Order - transitive verb - 1. to put in order : arrange - "The books are ordered alphabetically by author."
noun - 4. b(1) the arrangement, organization, or sequence of objects or of events - "alphabetical/chronological/historical order" "listed the items in order of importance"
https://www.merriam-webster.com/dictionary/sorting
Sort - transitive verb - 1. to put in a certain place or rank according to characteristics - "sort the mail" "sorted the winners from the losers" "sorting the data alphabetically"
noun - 5. an instance of sorting - "a numeric sort of a data file"