To add to William's post, how tall are the poles? If they are on the shorter side, you can add to them ....just keep the tops within reaching distance. If the are already at the max you can reach, see William's comments.
If there is one thing the Wizard of Oz has taught me, it is not to trust school teachers on bicycles.
This looks like a job for .... legal tender! It says so right in this tiny ad:
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