Koli Calling

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Koli Calling

International Conference on Computing Education

Proceedings

20th Koli Calling Conference on Computing Education Research Koli Calling 2020

November 19-22, 2020 Virtually hosted from Koli, Finland

Conference chairs

Nick Falkner, University of Adelaide, Australia Otto Seppala, Aalto University, Finland

Organised by

University of Adelaide, Australia Aalto University, Finland University of Eastern Finland, Finland

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In cooperation with ACM/SIGCSE

The Association for Computing Machinery 2 Penn Plaza, Suite 701

New York New York 10121-0701

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ISBN 978-1-4503-8921-1 Koli Calling 2020

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Koli Calling 2020 – Foreword

Welcome to Koli Calling 2020, the 20th Koli Calling International Conference on Computing Education Research. While Koli is traditionally held in the Koli National Park in Finland, this year it was held on-line due to the COVID-19 Pandemic. Koli Calling is a single-track conference which focuses on education research in the computing disciplines and aims to enhance our understanding of the learning and teaching issues affecting computing. The single-track was maintained despite the remote delivery model used, which led to some ingenious duplication of sessions across timezones to ensure this.

This conference attracted topics on a variety of themes, including: computing in schools; motivation and course design; supporting program and programming comprehension (with foci on both teaching and the tools employed); K-12 and higher education, conceptions and misconceptions in computing;

and exercises and feedback.

We were fortunate to have Professor Shuchi Grover from Stanford University as our Keynote Speaker, delivering an address entitled “Teaching frontiers of CS in secondary school: gender equity, data science, transdisciplinary learning and teacher preparation”.

We had 92 paper submissions, of which 20 were accepted as full papers and 16 as short papers, with a further 7 as posters and demonstrations (included in these proceedings as two-page abstracts), an overall acceptance rate of 39% for papers. Each paper was double-blind reviewed by at least three program committee members.

The conference would not have been possible without the hard work of the organising committee, to whom we extend our appreciation and thanks. The Senior PC members provided guidance and oversight, in addition to their specific roles as meta-reviewers. Many reviewers joined us for the first time, given the larger than usual number of submissions and we thank all of them for their professionalism and adaptability.

The Koli Calling 2020 Chairs would like to thank the team of volunteers who have helped to make the conference a success.

Nick Falkner and Otto Seppälä

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Koli Calling 2020 – Committees Program Chairs

Nick Falkner University of Adelaide, Australia

Otto Seppälä Aalto University, Finland

Local Chair

Ilkka Jormanainen University of Eastern Finland

Senior PC

Mark Guzdial University of Michigan Petri Ihantola University of Helsinki

Lauri Malmi Aalto University

Robert McCartney Department of Computer Science and Engineering, University of Connecticut Andrew Petersen University of Toronto

Program Committee

Thushari Atapattu The University of Adelaide

Erik Barendsen Radboud University & Open University Mike Barkmin University of Duisburg-Essen

Roberto A. Bittencourt UEFS - State University of Feira de Santana Francisco Enrique Vicente Castro Worcester Polytechnic Institute

Miguel Ángel Conde University of León

Cornelia Connolly National University of Ireland Galway David Cuartielles Malmö University

Rodrigo Duran IFMS Instituto Federal de Mato Grosso do Sul Stephen Edwards Virginia Tech

Katrina Falkner The University of Adelaide Francisco José García Peñalvo University of Salamanca Lassi Haaranen Aalto University Sally Hamouda Rhode Island College Brian Harrington University of Toronto Matthias Hauswirth University of Lugano Arto Hellas Aalto University

Timo Hynninen South-Eastern Finland University of Applied Sciences (XAMK) Hannu-Matti Järvinen Tampere University

Johan Jeuring Utrecht University and Open University NL Mike Joy The University of Warwick

Antti Knutas Lappeenranta University of Technology Emmanuel Awuni Kolog University of Ghana Business School

Juho Leinonen University of Helsinki Andreas Muehling Kiel University Solomon Sunday Oyelere University of Eastern Finland Anne Peters Uppsala University

Marian Petre The Open University Keith Quille TU Dublin

Guido Rößling TU Darmstadt

Kate Sanders Rhode Island College

André Santos ISCTE - Instituto Universitário de Lisboa Mohammed Saqr University of Eastern Finland

Carsten Schulte University of Paderborn Jane Sinclair The University of Warwick Juha Sorva Aalto University

Calkin Suero Montero University of Eastern Finland Jarkko Suhonen University of Eastern Finland Erkki Sutinen University of Turku, Finland Matti Tedre University of Eastern Finland Neena Thota University of Massachusetts Markku Tukiainen University of Eastern Finland Rebecca Vivian The University of Adelaide Carol Zander University of Washington

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Distributed and cloud computing, AI and machine learning, cybersecurity, big data and the internet of things are some of the new frontiers of computing that are transforming 21st century life. Yet students have few-to-no opportunities to engage in these exciting CS topics in high school. This talk will share the work of 'CSFrontiers'—an NSF-funded research and development effort that seeks to expand access to frontiers of computing in high school.

The modular curriculum is designed to be relatable to high school students, and especially girls, by affording exploration of topics such as climate change, social justice, and

healthcare, and emphasizing project-based learning, collaboration and teamwork.The presentation will focus specifically on the Distributed Computing module (CSF:DC) with a discussion of pedagogy and the tool—Netsblox that extends the Snap! programming environment with simple abstractions for synchronization and communication across computers. Through rich examples, the presentation will also showcase how the CSF:DC curriculum integrates data science and affords transdisciplinary learning by providing opportunities to interrogate topics in other subjects. The keynote will end with a discussion of an all-virtual CSF:DC teacher PD and curriculum co-design experience that was shaped and constrained by the Covid-19 crisis. Our generalizable FIRST principles—Flexibility,

Innovativeness, Responsiveness (and Respect), Supports, and Teamwork—that helped make this unique PD successful, can help guide future CS teacher PD designs.

Bio:

Dr. Shuchi Grover is a senior research scientist at Looking Glass Ventures and visiting scholar at Stanford University. A computer scientist and learning scientist by training, her work in computer science (CS) and STEM education since 2000 has spanned both formal and informal settings in the US, Europe, and Asia. Her current research centers on

computational thinking (CT), CS education, and STEM+Computing integration mainly in formal K-12 settings. Dr. Grover is a recipient of several grants from the National Science Foundation to conduct research on curriculum and assessments in STEM learning and CT in varied PK-12 contexts. She also works at the intersection of learning, assessment, and big data analytics to shape future environments for deeper learning. She has authored over 100 well-cited scholarly and mainstream articles. She has advised the K-12 CS Framework as well as several K-12 school districts on CS implementation/integration. She is on the editorial board of ACM Transactions on Computing Education and has served as a member of the ACM Education Advisory Committee. Dr. Grover led the effort to create the popular

Koli Calling

Table of Contents

Title:

“Teaching frontiers of CS in secondary school: gender equity, data science, transdisciplinary learning and teacher preparation.”

Abstract:

The modular curriculum is designed to be relatable to high school students, and especially girls, by affording exploration of topics such as climate change, social justice, and

Innovativeness, Responsiveness (and Respect), Supports, and Teamwork—that helped make this unique PD successful, can help guide future CS teacher PD designs.

Bio:

collaboratively-authored book for primary and secondary school CS teachers — "Computer

Science in K-12: An A to Z Handbook on Teaching Introductory Programming". She earned a

Ph.D. in Learning Sciences & Technology Design from Stanford University (with a focus on

Computer Science Education), Masters degrees in Education (Harvard University) and

Computer Science (Case Western Reserve University), and Bachelors degrees in Computer

Science and Physics from India.