Can ようにする be used without する in colloquial speech?


I came across the following sentence:

> ご家族とよく相談して書いてくる **ように** 。

For context: A teacher is talking to a class of students concerning a report
they have to write.

I know that ように is often used at the end of a sentence to express a wish
(especially in combination with どうか). However, I don't think the teacher is
expressing a wish here. Could this ように be part of the expression ようにする ("to
make sure that", "to try to") with the する missing? If so, is this a common
pattern in colloquial speech?




> 「ご家族{かぞく}とよく相談{そうだん}して書{か}いてくる **ように** 。」

You are reading the end part correctly. Something like 「してください」 or「しなさい」 is
left unsaid as it is clear.

When a request (or a lighter kind of imperative) ends with 「ように」, it always
comes from a person of a higher status to a person of a lower status.

If a request is made the other way around, the speaker (who is lower in
status) **_must_** add a polite verb phrase to 「ように」 such as
「お願｛ねが｝いします」、「してください」、「なさってください」, etc.




> 「ご家族{かぞく}とよく相談{そうだん}して書{か}いてくる **ように** 。」

You are reading the end part correctly. Something like 「してください」 or「しなさい」 is
left unsaid as it is clear.

When a request (or a lighter kind of imperative) ends with 「ように」, it always
comes from a person of a higher status to a person of a lower status.

If a request is made the other way around, the speaker (who is lower in
status) **_must_** add a polite verb phrase to 「ように」 such as
「お願｛ねが｝いします」、「してください」、「なさってください」, etc.

