Find the two clauses
When a student points to a comma and says, “I put it there because I paused,” ask which words belong together before discussing the punctuation.
If the riverside path is closed, visitors can use the hill route.
There are two clauses here. Visitors can use the hill route is the main clause: it can stand alone as a complete sentence. If the riverside path is closed is the dependent clause. It relies on the main clause to complete the message. The Australian Government Style Manual’s clause guide explains this distinction between main and dependent clauses.
Keep if attached when testing the dependent group. Here, is is the verb, while if introduces a condition; it doesn’t tell the reader that the path is definitely closed. A spoken pause may draw attention to the boundary, but comma decisions need to reflect sentence structure and meaning, as the Style Manual’s comma guidance shows.
Move the condition
Now move the complete condition to the end and adjust the capital letters:
Visitors can use the hill route if the riverside path is closed.
When the condition comes first, a comma separates the whole introductory clause from the main clause: If the riverside path is closed,. When the same condition follows and is closely integrated with the main message, it normally has no comma before it in this sentence.
Ask what disappears if the condition is removed. Visitors can use the hill route remains grammatically complete, but readers no longer know when that option applies. The two versions preserve the same conditional relationship, although moving the clause changes what readers meet first. The Style Manual’s explanation of complex sentences illustrates how clause order can shift emphasis.
This is the usual pattern for this particular use, not a rule that final dependent clauses can never take commas. Other meanings and sentence structures need their own judgement.
Try the worksheet sentences
The optional five-lesson Commas for Clear Information - Year 6 resource provides further clause and comma practice.
The printed instructions on Clause practice with support give students two pairs of clause chunks. They write each sentence with the dependent clause first, move that clause to the end, then explain the usual comma omission. Begin with the second pair about a group needing help and a pupil showing the route; its if clause connects directly with the riverside example.
Clause practice asks students to rewrite and explain three messages: one with an introductory time clause, one with two main clauses joined by and, and one with a shared subject completing two actions. Focus first on the observers’ message. After students add the comma following notes, you could ask them to move the time clause to the end. That reordering is a teacher-added follow-up, not part of the printed instruction.
The other two messages broaden the comparison: the presence of and alone doesn’t decide whether a comma belongs. This clause work addresses one part of the Year 6 English expectation for commas, which also includes lists and dialogue.
Ask for the reason
Finish with a fresh sentence:
If the courtyard is wet, the group can meet in the hall.
Ask students to place the main clause first and explain both punctuation choices. The revision is: The group can meet in the hall if the courtyard is wet.
Listen for three points: the main clause can stand alone, if stays with the condition, and the punctuation changes because the clause moves from an introductory position to an integrated final position. If a student gives only a pause-based explanation, return to the two complete word groups and ask which one stands alone. If they can explain both versions, invite them to make a comparable revision in their own information writing.