Operator Utilization and Abstract Conceptions

David Ginat*

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review


Algorithmic challenges occasionally embed the utilization of specified operators. Suitable operator utilization is tied to recognition and capitalization on its characteristics, which should be unfolded and comprehended. In seeking comprehension, one may invoke abstraction perspectives with which to view the operators' concrete features. We display invocations of such perspectives in problem solving of several “unplugged” challenges, and mention our experience with students. Problem solving of such challenges elaborates on comprehension and verification. It enhances conceptual practice, without programming considerations. Practice of the interplay between the abstract and the concrete elevates problem solving competence and confidence.

Original languageEnglish
Pages (from-to)77-85
Number of pages9
JournalOlympiads in Informatics
StatePublished - 2020
EventInternational Conference Joint with the 32nd International Olympiad in Informatics, IOI 2020 - Virtual, Online, Singapore
Duration: 13 Sep 202019 Sep 2020


  • abstraction
  • problem solving


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